Home / 22,972.82-31,699.08-12,899.79

Finding the Fourth Proportional to 22,972.82, 31,699.08 and 12,899.79

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Solution

The fourth proportional to 22,972.82, 31,699.08 and 12,899.79 is: 17,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,972.82 : 31,699.08 = 12,899.79 : x
  2. Step 2: Convert to fraction form
    22,972.82/31,699.08 = 12,899.79/x
  3. Step 3: Cross multiply
    22,972.82x = 31,699.08 × 12,899.79
  4. Step 4: Simplify right side
    22,972.82x = 408,911,475.19
  5. Step 5: Solve for x
    x = 408,911,475.19/22,972.82
  6. Step 6: Final answer
    x = 17,799.80

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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.