Home / 18,950.11-28,425.24-4,909.13

Finding the Fourth Proportional to 18,950.11, 28,425.24 and 4,909.13

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Solution

The fourth proportional to 18,950.11, 28,425.24 and 4,909.13 is: 7,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.11 : 28,425.24 = 4,909.13 : x
  2. Step 2: Convert to fraction form
    18,950.11/28,425.24 = 4,909.13/x
  3. Step 3: Cross multiply
    18,950.11x = 28,425.24 × 4,909.13
  4. Step 4: Simplify right side
    18,950.11x = 139,543,322.80
  5. Step 5: Solve for x
    x = 139,543,322.80/18,950.11
  6. Step 6: Final answer
    x = 7,363.72

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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.