Home / 22,431.76-30,955.42-13,001.20

Finding the Fourth Proportional to 22,431.76, 30,955.42 and 13,001.20

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Solution

The fourth proportional to 22,431.76, 30,955.42 and 13,001.20 is: 17,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.76 : 30,955.42 = 13,001.20 : x
  2. Step 2: Convert to fraction form
    22,431.76/30,955.42 = 13,001.20/x
  3. Step 3: Cross multiply
    22,431.76x = 30,955.42 × 13,001.20
  4. Step 4: Simplify right side
    22,431.76x = 402,457,606.50
  5. Step 5: Solve for x
    x = 402,457,606.50/22,431.76
  6. Step 6: Final answer
    x = 17,941.42

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Double scale
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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.