Home / 28,561.05-39,414.25-15,985.80

Finding the Fourth Proportional to 28,561.05, 39,414.25 and 15,985.80

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Solution

The fourth proportional to 28,561.05, 39,414.25 and 15,985.80 is: 22,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.05 : 39,414.25 = 15,985.80 : x
  2. Step 2: Convert to fraction form
    28,561.05/39,414.25 = 15,985.80/x
  3. Step 3: Cross multiply
    28,561.05x = 39,414.25 × 15,985.80
  4. Step 4: Simplify right side
    28,561.05x = 630,068,317.65
  5. Step 5: Solve for x
    x = 630,068,317.65/28,561.05
  6. Step 6: Final answer
    x = 22,060.40

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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.