Home / 21,501.38-29,671.92-12,069.96

Finding the Fourth Proportional to 21,501.38, 29,671.92 and 12,069.96

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Solution

The fourth proportional to 21,501.38, 29,671.92 and 12,069.96 is: 16,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.38 : 29,671.92 = 12,069.96 : x
  2. Step 2: Convert to fraction form
    21,501.38/29,671.92 = 12,069.96/x
  3. Step 3: Cross multiply
    21,501.38x = 29,671.92 × 12,069.96
  4. Step 4: Simplify right side
    21,501.38x = 358,138,887.52
  5. Step 5: Solve for x
    x = 358,138,887.52/21,501.38
  6. Step 6: Final answer
    x = 16,656.56

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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.