Home / 21,958.76-30,307.56-14,887.46

Finding the Fourth Proportional to 21,958.76, 30,307.56 and 14,887.46

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Solution

The fourth proportional to 21,958.76, 30,307.56 and 14,887.46 is: 20,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.76 : 30,307.56 = 14,887.46 : x
  2. Step 2: Convert to fraction form
    21,958.76/30,307.56 = 14,887.46/x
  3. Step 3: Cross multiply
    21,958.76x = 30,307.56 × 14,887.46
  4. Step 4: Simplify right side
    21,958.76x = 451,202,587.20
  5. Step 5: Solve for x
    x = 451,202,587.20/21,958.76
  6. Step 6: Final answer
    x = 20,547.73

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.