Home / 25,766.64-38,825.48-21,189.18

Finding the Fourth Proportional to 25,766.64, 38,825.48 and 21,189.18

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Solution

The fourth proportional to 25,766.64, 38,825.48 and 21,189.18 is: 31,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,766.64 : 38,825.48 = 21,189.18 : x
  2. Step 2: Convert to fraction form
    25,766.64/38,825.48 = 21,189.18/x
  3. Step 3: Cross multiply
    25,766.64x = 38,825.48 × 21,189.18
  4. Step 4: Simplify right side
    25,766.64x = 822,680,084.31
  5. Step 5: Solve for x
    x = 822,680,084.31/25,766.64
  6. Step 6: Final answer
    x = 31,928.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.