Home / 42,008.25-57,971.39-23,145.78

Finding the Fourth Proportional to 42,008.25, 57,971.39 and 23,145.78

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Solution

The fourth proportional to 42,008.25, 57,971.39 and 23,145.78 is: 31,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.25 : 57,971.39 = 23,145.78 : x
  2. Step 2: Convert to fraction form
    42,008.25/57,971.39 = 23,145.78/x
  3. Step 3: Cross multiply
    42,008.25x = 57,971.39 × 23,145.78
  4. Step 4: Simplify right side
    42,008.25x = 1,341,793,039.23
  5. Step 5: Solve for x
    x = 1,341,793,039.23/42,008.25
  6. Step 6: Final answer
    x = 31,941.18

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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.