Home / 20,077.47-30,092.31-15,130.80

Finding the Fourth Proportional to 20,077.47, 30,092.31 and 15,130.80

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Solution

The fourth proportional to 20,077.47, 30,092.31 and 15,130.80 is: 22,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.47 : 30,092.31 = 15,130.80 : x
  2. Step 2: Convert to fraction form
    20,077.47/30,092.31 = 15,130.80/x
  3. Step 3: Cross multiply
    20,077.47x = 30,092.31 × 15,130.80
  4. Step 4: Simplify right side
    20,077.47x = 455,320,724.15
  5. Step 5: Solve for x
    x = 455,320,724.15/20,077.47
  6. Step 6: Final answer
    x = 22,678.19

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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.