Home / 28,559.62-39,414.09-15,988.42

Finding the Fourth Proportional to 28,559.62, 39,414.09 and 15,988.42

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Solution

The fourth proportional to 28,559.62, 39,414.09 and 15,988.42 is: 22,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.62 : 39,414.09 = 15,988.42 : x
  2. Step 2: Convert to fraction form
    28,559.62/39,414.09 = 15,988.42/x
  3. Step 3: Cross multiply
    28,559.62x = 39,414.09 × 15,988.42
  4. Step 4: Simplify right side
    28,559.62x = 630,169,024.84
  5. Step 5: Solve for x
    x = 630,169,024.84/28,559.62
  6. Step 6: Final answer
    x = 22,065.04

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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.