Home / 31,387.90-47,038.11-23,587.60

Finding the Fourth Proportional to 31,387.90, 47,038.11 and 23,587.60

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Solution

The fourth proportional to 31,387.90, 47,038.11 and 23,587.60 is: 35,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.90 : 47,038.11 = 23,587.60 : x
  2. Step 2: Convert to fraction form
    31,387.90/47,038.11 = 23,587.60/x
  3. Step 3: Cross multiply
    31,387.90x = 47,038.11 × 23,587.60
  4. Step 4: Simplify right side
    31,387.90x = 1,109,516,123.44
  5. Step 5: Solve for x
    x = 1,109,516,123.44/31,387.90
  6. Step 6: Final answer
    x = 35,348.53

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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.