Home / 20,128.76-30,193.42-6,088.90

Finding the Fourth Proportional to 20,128.76, 30,193.42 and 6,088.90

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Solution

The fourth proportional to 20,128.76, 30,193.42 and 6,088.90 is: 9,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128.76 : 30,193.42 = 6,088.90 : x
  2. Step 2: Convert to fraction form
    20,128.76/30,193.42 = 6,088.90/x
  3. Step 3: Cross multiply
    20,128.76x = 30,193.42 × 6,088.90
  4. Step 4: Simplify right side
    20,128.76x = 183,844,715.04
  5. Step 5: Solve for x
    x = 183,844,715.04/20,128.76
  6. Step 6: Final answer
    x = 9,133.43

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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.