Home / 21,327.58-29,422.52-12,369.88

Finding the Fourth Proportional to 21,327.58, 29,422.52 and 12,369.88

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Solution

The fourth proportional to 21,327.58, 29,422.52 and 12,369.88 is: 17,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.58 : 29,422.52 = 12,369.88 : x
  2. Step 2: Convert to fraction form
    21,327.58/29,422.52 = 12,369.88/x
  3. Step 3: Cross multiply
    21,327.58x = 29,422.52 × 12,369.88
  4. Step 4: Simplify right side
    21,327.58x = 363,953,041.70
  5. Step 5: Solve for x
    x = 363,953,041.70/21,327.58
  6. Step 6: Final answer
    x = 17,064.90

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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.