Home / 28,314.65-39,070.82-15,565.73

Finding the Fourth Proportional to 28,314.65, 39,070.82 and 15,565.73

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Solution

The fourth proportional to 28,314.65, 39,070.82 and 15,565.73 is: 21,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.65 : 39,070.82 = 15,565.73 : x
  2. Step 2: Convert to fraction form
    28,314.65/39,070.82 = 15,565.73/x
  3. Step 3: Cross multiply
    28,314.65x = 39,070.82 × 15,565.73
  4. Step 4: Simplify right side
    28,314.65x = 608,165,835.00
  5. Step 5: Solve for x
    x = 608,165,835.00/28,314.65
  6. Step 6: Final answer
    x = 21,478.84

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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.