Home / 28,566.76-39,419.94-15,989.80

Finding the Fourth Proportional to 28,566.76, 39,419.94 and 15,989.80

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Solution

The fourth proportional to 28,566.76, 39,419.94 and 15,989.80 is: 22,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.76 : 39,419.94 = 15,989.80 : x
  2. Step 2: Convert to fraction form
    28,566.76/39,419.94 = 15,989.80/x
  3. Step 3: Cross multiply
    28,566.76x = 39,419.94 × 15,989.80
  4. Step 4: Simplify right side
    28,566.76x = 630,316,956.61
  5. Step 5: Solve for x
    x = 630,316,956.61/28,566.76
  6. Step 6: Final answer
    x = 22,064.70

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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.