Home / 29,100.28-40,139.94-20,041.24

Finding the Fourth Proportional to 29,100.28, 40,139.94 and 20,041.24

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Solution

The fourth proportional to 29,100.28, 40,139.94 and 20,041.24 is: 27,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,100.28 : 40,139.94 = 20,041.24 : x
  2. Step 2: Convert to fraction form
    29,100.28/40,139.94 = 20,041.24/x
  3. Step 3: Cross multiply
    29,100.28x = 40,139.94 × 20,041.24
  4. Step 4: Simplify right side
    29,100.28x = 804,454,171.13
  5. Step 5: Solve for x
    x = 804,454,171.13/29,100.28
  6. Step 6: Final answer
    x = 27,644.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.