Home / 42,021.13-57,990.38-23,159.47

Finding the Fourth Proportional to 42,021.13, 57,990.38 and 23,159.47

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Solution

The fourth proportional to 42,021.13, 57,990.38 and 23,159.47 is: 31,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.13 : 57,990.38 = 23,159.47 : x
  2. Step 2: Convert to fraction form
    42,021.13/57,990.38 = 23,159.47/x
  3. Step 3: Cross multiply
    42,021.13x = 57,990.38 × 23,159.47
  4. Step 4: Simplify right side
    42,021.13x = 1,343,026,060.15
  5. Step 5: Solve for x
    x = 1,343,026,060.15/42,021.13
  6. Step 6: Final answer
    x = 31,960.74

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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.