Home / 21,031.83-29,023.80-11,600.40

Finding the Fourth Proportional to 21,031.83, 29,023.80 and 11,600.40

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Solution

The fourth proportional to 21,031.83, 29,023.80 and 11,600.40 is: 16,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.83 : 29,023.80 = 11,600.40 : x
  2. Step 2: Convert to fraction form
    21,031.83/29,023.80 = 11,600.40/x
  3. Step 3: Cross multiply
    21,031.83x = 29,023.80 × 11,600.40
  4. Step 4: Simplify right side
    21,031.83x = 336,687,689.52
  5. Step 5: Solve for x
    x = 336,687,689.52/21,031.83
  6. Step 6: Final answer
    x = 16,008.48

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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.