Home / 28,902.42-39,884.50-16,155.63

Finding the Fourth Proportional to 28,902.42, 39,884.50 and 16,155.63

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Solution

The fourth proportional to 28,902.42, 39,884.50 and 16,155.63 is: 22,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.42 : 39,884.50 = 16,155.63 : x
  2. Step 2: Convert to fraction form
    28,902.42/39,884.50 = 16,155.63/x
  3. Step 3: Cross multiply
    28,902.42x = 39,884.50 × 16,155.63
  4. Step 4: Simplify right side
    28,902.42x = 644,359,132.75
  5. Step 5: Solve for x
    x = 644,359,132.75/28,902.42
  6. Step 6: Final answer
    x = 22,294.30

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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.