Home / 21,452.20-32,187.90-9,759.40

Finding the Fourth Proportional to 21,452.20, 32,187.90 and 9,759.40

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Solution

The fourth proportional to 21,452.20, 32,187.90 and 9,759.40 is: 14,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.20 : 32,187.90 = 9,759.40 : x
  2. Step 2: Convert to fraction form
    21,452.20/32,187.90 = 9,759.40/x
  3. Step 3: Cross multiply
    21,452.20x = 32,187.90 × 9,759.40
  4. Step 4: Simplify right side
    21,452.20x = 314,134,591.26
  5. Step 5: Solve for x
    x = 314,134,591.26/21,452.20
  6. Step 6: Final answer
    x = 14,643.47

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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.