Home / 21,031.05-29,023.07-11,600.49

Finding the Fourth Proportional to 21,031.05, 29,023.07 and 11,600.49

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Solution

The fourth proportional to 21,031.05, 29,023.07 and 11,600.49 is: 16,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.05 : 29,023.07 = 11,600.49 : x
  2. Step 2: Convert to fraction form
    21,031.05/29,023.07 = 11,600.49/x
  3. Step 3: Cross multiply
    21,031.05x = 29,023.07 × 11,600.49
  4. Step 4: Simplify right side
    21,031.05x = 336,681,775.30
  5. Step 5: Solve for x
    x = 336,681,775.30/21,031.05
  6. Step 6: Final answer
    x = 16,008.80

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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.