Home / 20,157.02-30,227.62-11,839.13

Finding the Fourth Proportional to 20,157.02, 30,227.62 and 11,839.13

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Solution

The fourth proportional to 20,157.02, 30,227.62 and 11,839.13 is: 17,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.02 : 30,227.62 = 11,839.13 : x
  2. Step 2: Convert to fraction form
    20,157.02/30,227.62 = 11,839.13/x
  3. Step 3: Cross multiply
    20,157.02x = 30,227.62 × 11,839.13
  4. Step 4: Simplify right side
    20,157.02x = 357,868,722.77
  5. Step 5: Solve for x
    x = 357,868,722.77/20,157.02
  6. Step 6: Final answer
    x = 17,754.05

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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.