Home / 21,032.08-29,023.76-11,472.16

Finding the Fourth Proportional to 21,032.08, 29,023.76 and 11,472.16

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Solution

The fourth proportional to 21,032.08, 29,023.76 and 11,472.16 is: 15,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.08 : 29,023.76 = 11,472.16 : x
  2. Step 2: Convert to fraction form
    21,032.08/29,023.76 = 11,472.16/x
  3. Step 3: Cross multiply
    21,032.08x = 29,023.76 × 11,472.16
  4. Step 4: Simplify right side
    21,032.08x = 332,965,218.52
  5. Step 5: Solve for x
    x = 332,965,218.52/21,032.08
  6. Step 6: Final answer
    x = 15,831.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.