Home / 22,319.96-30,801.27-12,888.32

Finding the Fourth Proportional to 22,319.96, 30,801.27 and 12,888.32

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Solution

The fourth proportional to 22,319.96, 30,801.27 and 12,888.32 is: 17,785.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,319.96 : 30,801.27 = 12,888.32 : x
  2. Step 2: Convert to fraction form
    22,319.96/30,801.27 = 12,888.32/x
  3. Step 3: Cross multiply
    22,319.96x = 30,801.27 × 12,888.32
  4. Step 4: Simplify right side
    22,319.96x = 396,976,470.16
  5. Step 5: Solve for x
    x = 396,976,470.16/22,319.96
  6. Step 6: Final answer
    x = 17,785.72

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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.