Home / 22,619.39-31,214.72-12,549.36

Finding the Fourth Proportional to 22,619.39, 31,214.72 and 12,549.36

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Solution

The fourth proportional to 22,619.39, 31,214.72 and 12,549.36 is: 17,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.39 : 31,214.72 = 12,549.36 : x
  2. Step 2: Convert to fraction form
    22,619.39/31,214.72 = 12,549.36/x
  3. Step 3: Cross multiply
    22,619.39x = 31,214.72 × 12,549.36
  4. Step 4: Simplify right side
    22,619.39x = 391,724,695.83
  5. Step 5: Solve for x
    x = 391,724,695.83/22,619.39
  6. Step 6: Final answer
    x = 17,318.10

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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.