Home / 31,134.11-42,974.21-17,712.86

Finding the Fourth Proportional to 31,134.11, 42,974.21 and 17,712.86

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Solution

The fourth proportional to 31,134.11, 42,974.21 and 17,712.86 is: 24,448.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,134.11 : 42,974.21 = 17,712.86 : x
  2. Step 2: Convert to fraction form
    31,134.11/42,974.21 = 17,712.86/x
  3. Step 3: Cross multiply
    31,134.11x = 42,974.21 × 17,712.86
  4. Step 4: Simplify right side
    31,134.11x = 761,195,994.75
  5. Step 5: Solve for x
    x = 761,195,994.75/31,134.11
  6. Step 6: Final answer
    x = 24,448.94

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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.