Home / 31,539.20-47,211.60-18,352.40

Finding the Fourth Proportional to 31,539.20, 47,211.60 and 18,352.40

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Solution

The fourth proportional to 31,539.20, 47,211.60 and 18,352.40 is: 27,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.20 : 47,211.60 = 18,352.40 : x
  2. Step 2: Convert to fraction form
    31,539.20/47,211.60 = 18,352.40/x
  3. Step 3: Cross multiply
    31,539.20x = 47,211.60 × 18,352.40
  4. Step 4: Simplify right side
    31,539.20x = 866,446,167.84
  5. Step 5: Solve for x
    x = 866,446,167.84/31,539.20
  6. Step 6: Final answer
    x = 27,472.04

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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.