Home / 28,347.59-42,530.94-12,550.43

Finding the Fourth Proportional to 28,347.59, 42,530.94 and 12,550.43

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Solution

The fourth proportional to 28,347.59, 42,530.94 and 12,550.43 is: 18,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.59 : 42,530.94 = 12,550.43 : x
  2. Step 2: Convert to fraction form
    28,347.59/42,530.94 = 12,550.43/x
  3. Step 3: Cross multiply
    28,347.59x = 42,530.94 × 12,550.43
  4. Step 4: Simplify right side
    28,347.59x = 533,781,691.63
  5. Step 5: Solve for x
    x = 533,781,691.63/28,347.59
  6. Step 6: Final answer
    x = 18,829.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.