Home / 28,314.15-39,070.13-15,565.23

Finding the Fourth Proportional to 28,314.15, 39,070.13 and 15,565.23

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Solution

The fourth proportional to 28,314.15, 39,070.13 and 15,565.23 is: 21,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.15 : 39,070.13 = 15,565.23 : x
  2. Step 2: Convert to fraction form
    28,314.15/39,070.13 = 15,565.23/x
  3. Step 3: Cross multiply
    28,314.15x = 39,070.13 × 15,565.23
  4. Step 4: Simplify right side
    28,314.15x = 608,135,481.75
  5. Step 5: Solve for x
    x = 608,135,481.75/28,314.15
  6. Step 6: Final answer
    x = 21,478.15

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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.