Home / 20,042.40-30,068.28-5,811.18

Finding the Fourth Proportional to 20,042.40, 30,068.28 and 5,811.18

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Solution

The fourth proportional to 20,042.40, 30,068.28 and 5,811.18 is: 8,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.40 : 30,068.28 = 5,811.18 : x
  2. Step 2: Convert to fraction form
    20,042.40/30,068.28 = 5,811.18/x
  3. Step 3: Cross multiply
    20,042.40x = 30,068.28 × 5,811.18
  4. Step 4: Simplify right side
    20,042.40x = 174,732,049.03
  5. Step 5: Solve for x
    x = 174,732,049.03/20,042.40
  6. Step 6: Final answer
    x = 8,718.12

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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.