Home / 31,685.60-43,726.16-19,748.92

Finding the Fourth Proportional to 31,685.60, 43,726.16 and 19,748.92

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Solution

The fourth proportional to 31,685.60, 43,726.16 and 19,748.92 is: 27,253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.60 : 43,726.16 = 19,748.92 : x
  2. Step 2: Convert to fraction form
    31,685.60/43,726.16 = 19,748.92/x
  3. Step 3: Cross multiply
    31,685.60x = 43,726.16 × 19,748.92
  4. Step 4: Simplify right side
    31,685.60x = 863,544,435.75
  5. Step 5: Solve for x
    x = 863,544,435.75/31,685.60
  6. Step 6: Final answer
    x = 27,253.53

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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.