Home / 22,488.28-31,033.38-12,417.72

Finding the Fourth Proportional to 22,488.28, 31,033.38 and 12,417.72

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Solution

The fourth proportional to 22,488.28, 31,033.38 and 12,417.72 is: 17,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,488.28 : 31,033.38 = 12,417.72 : x
  2. Step 2: Convert to fraction form
    22,488.28/31,033.38 = 12,417.72/x
  3. Step 3: Cross multiply
    22,488.28x = 31,033.38 × 12,417.72
  4. Step 4: Simplify right side
    22,488.28x = 385,363,823.49
  5. Step 5: Solve for x
    x = 385,363,823.49/22,488.28
  6. Step 6: Final answer
    x = 17,136.21

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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.