Home / 28,737.83-39,657.18-15,990.59

Finding the Fourth Proportional to 28,737.83, 39,657.18 and 15,990.59

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Solution

The fourth proportional to 28,737.83, 39,657.18 and 15,990.59 is: 22,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.83 : 39,657.18 = 15,990.59 : x
  2. Step 2: Convert to fraction form
    28,737.83/39,657.18 = 15,990.59/x
  3. Step 3: Cross multiply
    28,737.83x = 39,657.18 × 15,990.59
  4. Step 4: Simplify right side
    28,737.83x = 634,141,507.65
  5. Step 5: Solve for x
    x = 634,141,507.65/28,737.83
  6. Step 6: Final answer
    x = 22,066.44

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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.