Home / 22,988.23-31,723.92-12,916.69

Finding the Fourth Proportional to 22,988.23, 31,723.92 and 12,916.69

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Solution

The fourth proportional to 22,988.23, 31,723.92 and 12,916.69 is: 17,825.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,988.23 : 31,723.92 = 12,916.69 : x
  2. Step 2: Convert to fraction form
    22,988.23/31,723.92 = 12,916.69/x
  3. Step 3: Cross multiply
    22,988.23x = 31,723.92 × 12,916.69
  4. Step 4: Simplify right side
    22,988.23x = 409,767,960.92
  5. Step 5: Solve for x
    x = 409,767,960.92/22,988.23
  6. Step 6: Final answer
    x = 17,825.12

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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.