Home / 42,022.28-57,990.36-23,159

Finding the Fourth Proportional to 42,022.28, 57,990.36 and 23,159

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Solution

The fourth proportional to 42,022.28, 57,990.36 and 23,159 is: 31,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,022.28 : 57,990.36 = 23,159 : x
  2. Step 2: Convert to fraction form
    42,022.28/57,990.36 = 23,159/x
  3. Step 3: Cross multiply
    42,022.28x = 57,990.36 × 23,159
  4. Step 4: Simplify right side
    42,022.28x = 1,342,998,747.24
  5. Step 5: Solve for x
    x = 1,342,998,747.24/42,022.28
  6. Step 6: Final answer
    x = 31,959.21

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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.