Home / 21,627.39-32,378.31-19,376.40

Finding the Fourth Proportional to 21,627.39, 32,378.31 and 19,376.40

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Solution

The fourth proportional to 21,627.39, 32,378.31 and 19,376.40 is: 29,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.39 : 32,378.31 = 19,376.40 : x
  2. Step 2: Convert to fraction form
    21,627.39/32,378.31 = 19,376.40/x
  3. Step 3: Cross multiply
    21,627.39x = 32,378.31 × 19,376.40
  4. Step 4: Simplify right side
    21,627.39x = 627,375,085.88
  5. Step 5: Solve for x
    x = 627,375,085.88/21,627.39
  6. Step 6: Final answer
    x = 29,008.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.