Home / 28,430.20-39,233.58-16,500.52

Finding the Fourth Proportional to 28,430.20, 39,233.58 and 16,500.52

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Solution

The fourth proportional to 28,430.20, 39,233.58 and 16,500.52 is: 22,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.20 : 39,233.58 = 16,500.52 : x
  2. Step 2: Convert to fraction form
    28,430.20/39,233.58 = 16,500.52/x
  3. Step 3: Cross multiply
    28,430.20x = 39,233.58 × 16,500.52
  4. Step 4: Simplify right side
    28,430.20x = 647,374,471.46
  5. Step 5: Solve for x
    x = 647,374,471.46/28,430.20
  6. Step 6: Final answer
    x = 22,770.66

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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.