Home / 28,063.29-38,726.32-15,487.77

Finding the Fourth Proportional to 28,063.29, 38,726.32 and 15,487.77

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Solution

The fourth proportional to 28,063.29, 38,726.32 and 15,487.77 is: 21,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.29 : 38,726.32 = 15,487.77 : x
  2. Step 2: Convert to fraction form
    28,063.29/38,726.32 = 15,487.77/x
  3. Step 3: Cross multiply
    28,063.29x = 38,726.32 × 15,487.77
  4. Step 4: Simplify right side
    28,063.29x = 599,784,337.11
  5. Step 5: Solve for x
    x = 599,784,337.11/28,063.29
  6. Step 6: Final answer
    x = 21,372.56

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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.