Home / 22,471.56-30,986.82-15,386.76

Finding the Fourth Proportional to 22,471.56, 30,986.82 and 15,386.76

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Solution

The fourth proportional to 22,471.56, 30,986.82 and 15,386.76 is: 21,217.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,471.56 : 30,986.82 = 15,386.76 : x
  2. Step 2: Convert to fraction form
    22,471.56/30,986.82 = 15,386.76/x
  3. Step 3: Cross multiply
    22,471.56x = 30,986.82 × 15,386.76
  4. Step 4: Simplify right side
    22,471.56x = 476,786,762.50
  5. Step 5: Solve for x
    x = 476,786,762.50/22,471.56
  6. Step 6: Final answer
    x = 21,217.34

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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.