Home / 28,909.68-43,357.50-12,270.12

Finding the Fourth Proportional to 28,909.68, 43,357.50 and 12,270.12

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Solution

The fourth proportional to 28,909.68, 43,357.50 and 12,270.12 is: 18,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.68 : 43,357.50 = 12,270.12 : x
  2. Step 2: Convert to fraction form
    28,909.68/43,357.50 = 12,270.12/x
  3. Step 3: Cross multiply
    28,909.68x = 43,357.50 × 12,270.12
  4. Step 4: Simplify right side
    28,909.68x = 532,001,727.90
  5. Step 5: Solve for x
    x = 532,001,727.90/28,909.68
  6. Step 6: Final answer
    x = 18,402.20

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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.