Home / 22,617.19-31,211.87-12,545.80

Finding the Fourth Proportional to 22,617.19, 31,211.87 and 12,545.80

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Solution

The fourth proportional to 22,617.19, 31,211.87 and 12,545.80 is: 17,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,617.19 : 31,211.87 = 12,545.80 : x
  2. Step 2: Convert to fraction form
    22,617.19/31,211.87 = 12,545.80/x
  3. Step 3: Cross multiply
    22,617.19x = 31,211.87 × 12,545.80
  4. Step 4: Simplify right side
    22,617.19x = 391,577,878.65
  5. Step 5: Solve for x
    x = 391,577,878.65/22,617.19
  6. Step 6: Final answer
    x = 17,313.29

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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.