Home / 21,327.06-29,437.20-12,377.44

Finding the Fourth Proportional to 21,327.06, 29,437.20 and 12,377.44

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Solution

The fourth proportional to 21,327.06, 29,437.20 and 12,377.44 is: 17,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.06 : 29,437.20 = 12,377.44 : x
  2. Step 2: Convert to fraction form
    21,327.06/29,437.20 = 12,377.44/x
  3. Step 3: Cross multiply
    21,327.06x = 29,437.20 × 12,377.44
  4. Step 4: Simplify right side
    21,327.06x = 364,357,176.77
  5. Step 5: Solve for x
    x = 364,357,176.77/21,327.06
  6. Step 6: Final answer
    x = 17,084.27

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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.