Home / 22,989.30-31,723.29-12,916.95

Finding the Fourth Proportional to 22,989.30, 31,723.29 and 12,916.95

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Solution

The fourth proportional to 22,989.30, 31,723.29 and 12,916.95 is: 17,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.30 : 31,723.29 = 12,916.95 : x
  2. Step 2: Convert to fraction form
    22,989.30/31,723.29 = 12,916.95/x
  3. Step 3: Cross multiply
    22,989.30x = 31,723.29 × 12,916.95
  4. Step 4: Simplify right side
    22,989.30x = 409,768,150.77
  5. Step 5: Solve for x
    x = 409,768,150.77/22,989.30
  6. Step 6: Final answer
    x = 17,824.30

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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.