Home / 28,328.77-39,092.92-15,581.98

Finding the Fourth Proportional to 28,328.77, 39,092.92 and 15,581.98

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Solution

The fourth proportional to 28,328.77, 39,092.92 and 15,581.98 is: 21,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.77 : 39,092.92 = 15,581.98 : x
  2. Step 2: Convert to fraction form
    28,328.77/39,092.92 = 15,581.98/x
  3. Step 3: Cross multiply
    28,328.77x = 39,092.92 × 15,581.98
  4. Step 4: Simplify right side
    28,328.77x = 609,145,097.58
  5. Step 5: Solve for x
    x = 609,145,097.58/28,328.77
  6. Step 6: Final answer
    x = 21,502.70

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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.