Home / 21,031.58-29,023.08-11,600.30

Finding the Fourth Proportional to 21,031.58, 29,023.08 and 11,600.30

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Solution

The fourth proportional to 21,031.58, 29,023.08 and 11,600.30 is: 16,008.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.58 : 29,023.08 = 11,600.30 : x
  2. Step 2: Convert to fraction form
    21,031.58/29,023.08 = 11,600.30/x
  3. Step 3: Cross multiply
    21,031.58x = 29,023.08 × 11,600.30
  4. Step 4: Simplify right side
    21,031.58x = 336,676,434.92
  5. Step 5: Solve for x
    x = 336,676,434.92/21,031.58
  6. Step 6: Final answer
    x = 16,008.14

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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.