Home / 22,419.30-30,920.97-13,916.62

Finding the Fourth Proportional to 22,419.30, 30,920.97 and 13,916.62

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Solution

The fourth proportional to 22,419.30, 30,920.97 and 13,916.62 is: 19,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,419.30 : 30,920.97 = 13,916.62 : x
  2. Step 2: Convert to fraction form
    22,419.30/30,920.97 = 13,916.62/x
  3. Step 3: Cross multiply
    22,419.30x = 30,920.97 × 13,916.62
  4. Step 4: Simplify right side
    22,419.30x = 430,315,389.52
  5. Step 5: Solve for x
    x = 430,315,389.52/22,419.30
  6. Step 6: Final answer
    x = 19,193.97

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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.