Home / 31,520.72-47,281.23-9,334.51

Finding the Fourth Proportional to 31,520.72, 47,281.23 and 9,334.51

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Solution

The fourth proportional to 31,520.72, 47,281.23 and 9,334.51 is: 14,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.72 : 47,281.23 = 9,334.51 : x
  2. Step 2: Convert to fraction form
    31,520.72/47,281.23 = 9,334.51/x
  3. Step 3: Cross multiply
    31,520.72x = 47,281.23 × 9,334.51
  4. Step 4: Simplify right side
    31,520.72x = 441,347,114.25
  5. Step 5: Solve for x
    x = 441,347,114.25/31,520.72
  6. Step 6: Final answer
    x = 14,001.81

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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.