Home / 22,850.32-31,531.80-13,417.60

Finding the Fourth Proportional to 22,850.32, 31,531.80 and 13,417.60

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Solution

The fourth proportional to 22,850.32, 31,531.80 and 13,417.60 is: 18,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,850.32 : 31,531.80 = 13,417.60 : x
  2. Step 2: Convert to fraction form
    22,850.32/31,531.80 = 13,417.60/x
  3. Step 3: Cross multiply
    22,850.32x = 31,531.80 × 13,417.60
  4. Step 4: Simplify right side
    22,850.32x = 423,081,079.68
  5. Step 5: Solve for x
    x = 423,081,079.68/22,850.32
  6. Step 6: Final answer
    x = 18,515.32

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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.