Home / 28,472.14-39,291.36-15,726.16

Finding the Fourth Proportional to 28,472.14, 39,291.36 and 15,726.16

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Solution

The fourth proportional to 28,472.14, 39,291.36 and 15,726.16 is: 21,701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.14 : 39,291.36 = 15,726.16 : x
  2. Step 2: Convert to fraction form
    28,472.14/39,291.36 = 15,726.16/x
  3. Step 3: Cross multiply
    28,472.14x = 39,291.36 × 15,726.16
  4. Step 4: Simplify right side
    28,472.14x = 617,902,213.98
  5. Step 5: Solve for x
    x = 617,902,213.98/28,472.14
  6. Step 6: Final answer
    x = 21,701.99

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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.