Home / 31,504.20-47,256.30-21,006.60

Finding the Fourth Proportional to 31,504.20, 47,256.30 and 21,006.60

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Solution

The fourth proportional to 31,504.20, 47,256.30 and 21,006.60 is: 31,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504.20 : 47,256.30 = 21,006.60 : x
  2. Step 2: Convert to fraction form
    31,504.20/47,256.30 = 21,006.60/x
  3. Step 3: Cross multiply
    31,504.20x = 47,256.30 × 21,006.60
  4. Step 4: Simplify right side
    31,504.20x = 992,694,191.58
  5. Step 5: Solve for x
    x = 992,694,191.58/31,504.20
  6. Step 6: Final answer
    x = 31,509.90

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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.