Home / 28,127.38-42,191.84-9,403.93

Finding the Fourth Proportional to 28,127.38, 42,191.84 and 9,403.93

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Solution

The fourth proportional to 28,127.38, 42,191.84 and 9,403.93 is: 14,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.38 : 42,191.84 = 9,403.93 : x
  2. Step 2: Convert to fraction form
    28,127.38/42,191.84 = 9,403.93/x
  3. Step 3: Cross multiply
    28,127.38x = 42,191.84 × 9,403.93
  4. Step 4: Simplify right side
    28,127.38x = 396,769,103.79
  5. Step 5: Solve for x
    x = 396,769,103.79/28,127.38
  6. Step 6: Final answer
    x = 14,106.15

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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.