Home / 22,619.64-31,215.07-12,549.60

Finding the Fourth Proportional to 22,619.64, 31,215.07 and 12,549.60

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Solution

The fourth proportional to 22,619.64, 31,215.07 and 12,549.60 is: 17,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.64 : 31,215.07 = 12,549.60 : x
  2. Step 2: Convert to fraction form
    22,619.64/31,215.07 = 12,549.60/x
  3. Step 3: Cross multiply
    22,619.64x = 31,215.07 × 12,549.60
  4. Step 4: Simplify right side
    22,619.64x = 391,736,642.47
  5. Step 5: Solve for x
    x = 391,736,642.47/22,619.64
  6. Step 6: Final answer
    x = 17,318.43

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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.