Home / 31,542.52-47,310.90-18,386.68

Finding the Fourth Proportional to 31,542.52, 47,310.90 and 18,386.68

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Solution

The fourth proportional to 31,542.52, 47,310.90 and 18,386.68 is: 27,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,542.52 : 47,310.90 = 18,386.68 : x
  2. Step 2: Convert to fraction form
    31,542.52/47,310.90 = 18,386.68/x
  3. Step 3: Cross multiply
    31,542.52x = 47,310.90 × 18,386.68
  4. Step 4: Simplify right side
    31,542.52x = 869,890,378.81
  5. Step 5: Solve for x
    x = 869,890,378.81/31,542.52
  6. Step 6: Final answer
    x = 27,578.34

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1.5x scale

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.