Home / 42,007.74-57,971.07-23,145.18

Finding the Fourth Proportional to 42,007.74, 57,971.07 and 23,145.18

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Solution

The fourth proportional to 42,007.74, 57,971.07 and 23,145.18 is: 31,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,007.74 : 57,971.07 = 23,145.18 : x
  2. Step 2: Convert to fraction form
    42,007.74/57,971.07 = 23,145.18/x
  3. Step 3: Cross multiply
    42,007.74x = 57,971.07 × 23,145.18
  4. Step 4: Simplify right side
    42,007.74x = 1,341,750,849.94
  5. Step 5: Solve for x
    x = 1,341,750,849.94/42,007.74
  6. Step 6: Final answer
    x = 31,940.56

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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.