Home / 31,652.48-47,465.76-11,921.12

Finding the Fourth Proportional to 31,652.48, 47,465.76 and 11,921.12

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Solution

The fourth proportional to 31,652.48, 47,465.76 and 11,921.12 is: 17,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,652.48 : 47,465.76 = 11,921.12 : x
  2. Step 2: Convert to fraction form
    31,652.48/47,465.76 = 11,921.12/x
  3. Step 3: Cross multiply
    31,652.48x = 47,465.76 × 11,921.12
  4. Step 4: Simplify right side
    31,652.48x = 565,845,020.85
  5. Step 5: Solve for x
    x = 565,845,020.85/31,652.48
  6. Step 6: Final answer
    x = 17,876.80

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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.