Home / 31,802.12-43,892.52-18,373.88

Finding the Fourth Proportional to 31,802.12, 43,892.52 and 18,373.88

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Solution

The fourth proportional to 31,802.12, 43,892.52 and 18,373.88 is: 25,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.12 : 43,892.52 = 18,373.88 : x
  2. Step 2: Convert to fraction form
    31,802.12/43,892.52 = 18,373.88/x
  3. Step 3: Cross multiply
    31,802.12x = 43,892.52 × 18,373.88
  4. Step 4: Simplify right side
    31,802.12x = 806,475,895.38
  5. Step 5: Solve for x
    x = 806,475,895.38/31,802.12
  6. Step 6: Final answer
    x = 25,359.19

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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.