Home / 31,043.52-42,833.52-20,304.14

Finding the Fourth Proportional to 31,043.52, 42,833.52 and 20,304.14

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Solution

The fourth proportional to 31,043.52, 42,833.52 and 20,304.14 is: 28,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,043.52 : 42,833.52 = 20,304.14 : x
  2. Step 2: Convert to fraction form
    31,043.52/42,833.52 = 20,304.14/x
  3. Step 3: Cross multiply
    31,043.52x = 42,833.52 × 20,304.14
  4. Step 4: Simplify right side
    31,043.52x = 869,697,572.61
  5. Step 5: Solve for x
    x = 869,697,572.61/31,043.52
  6. Step 6: Final answer
    x = 28,015.43

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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.