Home / 28,327.15-39,091.30-15,581.13

Finding the Fourth Proportional to 28,327.15, 39,091.30 and 15,581.13

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Solution

The fourth proportional to 28,327.15, 39,091.30 and 15,581.13 is: 21,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.15 : 39,091.30 = 15,581.13 : x
  2. Step 2: Convert to fraction form
    28,327.15/39,091.30 = 15,581.13/x
  3. Step 3: Cross multiply
    28,327.15x = 39,091.30 × 15,581.13
  4. Step 4: Simplify right side
    28,327.15x = 609,086,627.17
  5. Step 5: Solve for x
    x = 609,086,627.17/28,327.15
  6. Step 6: Final answer
    x = 21,501.87

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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.