Home / 22,921.08-31,631.61-12,849.03

Finding the Fourth Proportional to 22,921.08, 31,631.61 and 12,849.03

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Solution

The fourth proportional to 22,921.08, 31,631.61 and 12,849.03 is: 17,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.08 : 31,631.61 = 12,849.03 : x
  2. Step 2: Convert to fraction form
    22,921.08/31,631.61 = 12,849.03/x
  3. Step 3: Cross multiply
    22,921.08x = 31,631.61 × 12,849.03
  4. Step 4: Simplify right side
    22,921.08x = 406,435,554.02
  5. Step 5: Solve for x
    x = 406,435,554.02/22,921.08
  6. Step 6: Final answer
    x = 17,731.96

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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.