Home / 39,472.40-54,475.65-21,570.14

Finding the Fourth Proportional to 39,472.40, 54,475.65 and 21,570.14

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Solution

The fourth proportional to 39,472.40, 54,475.65 and 21,570.14 is: 29,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,472.40 : 54,475.65 = 21,570.14 : x
  2. Step 2: Convert to fraction form
    39,472.40/54,475.65 = 21,570.14/x
  3. Step 3: Cross multiply
    39,472.40x = 54,475.65 × 21,570.14
  4. Step 4: Simplify right side
    39,472.40x = 1,175,047,124.71
  5. Step 5: Solve for x
    x = 1,175,047,124.71/39,472.40
  6. Step 6: Final answer
    x = 29,768.83

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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.