Home / 31,487.04-47,232.72-11,765.16

Finding the Fourth Proportional to 31,487.04, 47,232.72 and 11,765.16

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Solution

The fourth proportional to 31,487.04, 47,232.72 and 11,765.16 is: 17,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.04 : 47,232.72 = 11,765.16 : x
  2. Step 2: Convert to fraction form
    31,487.04/47,232.72 = 11,765.16/x
  3. Step 3: Cross multiply
    31,487.04x = 47,232.72 × 11,765.16
  4. Step 4: Simplify right side
    31,487.04x = 555,700,508.04
  5. Step 5: Solve for x
    x = 555,700,508.04/31,487.04
  6. Step 6: Final answer
    x = 17,648.55

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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.