Home / 20,078.14-30,117.45-9,549.18

Finding the Fourth Proportional to 20,078.14, 30,117.45 and 9,549.18

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Solution

The fourth proportional to 20,078.14, 30,117.45 and 9,549.18 is: 14,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.14 : 30,117.45 = 9,549.18 : x
  2. Step 2: Convert to fraction form
    20,078.14/30,117.45 = 9,549.18/x
  3. Step 3: Cross multiply
    20,078.14x = 30,117.45 × 9,549.18
  4. Step 4: Simplify right side
    20,078.14x = 287,596,951.19
  5. Step 5: Solve for x
    x = 287,596,951.19/20,078.14
  6. Step 6: Final answer
    x = 14,323.88

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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.