Home / 31,659.12-47,428.20-19,182.96

Finding the Fourth Proportional to 31,659.12, 47,428.20 and 19,182.96

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Solution

The fourth proportional to 31,659.12, 47,428.20 and 19,182.96 is: 28,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,659.12 : 47,428.20 = 19,182.96 : x
  2. Step 2: Convert to fraction form
    31,659.12/47,428.20 = 19,182.96/x
  3. Step 3: Cross multiply
    31,659.12x = 47,428.20 × 19,182.96
  4. Step 4: Simplify right side
    31,659.12x = 909,813,263.47
  5. Step 5: Solve for x
    x = 909,813,263.47/31,659.12
  6. Step 6: Final answer
    x = 28,737.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.