Home / 28,472.16-39,291.42-15,896.91

Finding the Fourth Proportional to 28,472.16, 39,291.42 and 15,896.91

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Solution

The fourth proportional to 28,472.16, 39,291.42 and 15,896.91 is: 21,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.16 : 39,291.42 = 15,896.91 : x
  2. Step 2: Convert to fraction form
    28,472.16/39,291.42 = 15,896.91/x
  3. Step 3: Cross multiply
    28,472.16x = 39,291.42 × 15,896.91
  4. Step 4: Simplify right side
    28,472.16x = 624,612,167.51
  5. Step 5: Solve for x
    x = 624,612,167.51/28,472.16
  6. Step 6: Final answer
    x = 21,937.65

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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.