Home / 22,618.16-31,216.80-12,549.84

Finding the Fourth Proportional to 22,618.16, 31,216.80 and 12,549.84

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Solution

The fourth proportional to 22,618.16, 31,216.80 and 12,549.84 is: 17,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,618.16 : 31,216.80 = 12,549.84 : x
  2. Step 2: Convert to fraction form
    22,618.16/31,216.80 = 12,549.84/x
  3. Step 3: Cross multiply
    22,618.16x = 31,216.80 × 12,549.84
  4. Step 4: Simplify right side
    22,618.16x = 391,765,845.31
  5. Step 5: Solve for x
    x = 391,765,845.31/22,618.16
  6. Step 6: Final answer
    x = 17,320.85

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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.