Home / 31,531.52-47,265.34-20,445.24

Finding the Fourth Proportional to 31,531.52, 47,265.34 and 20,445.24

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Solution

The fourth proportional to 31,531.52, 47,265.34 and 20,445.24 is: 30,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.52 : 47,265.34 = 20,445.24 : x
  2. Step 2: Convert to fraction form
    31,531.52/47,265.34 = 20,445.24/x
  3. Step 3: Cross multiply
    31,531.52x = 47,265.34 × 20,445.24
  4. Step 4: Simplify right side
    31,531.52x = 966,351,219.98
  5. Step 5: Solve for x
    x = 966,351,219.98/31,531.52
  6. Step 6: Final answer
    x = 30,647.15

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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.