Home / 21,899.60-32,849.40-9,425.60

Finding the Fourth Proportional to 21,899.60, 32,849.40 and 9,425.60

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Solution

The fourth proportional to 21,899.60, 32,849.40 and 9,425.60 is: 14,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.60 : 32,849.40 = 9,425.60 : x
  2. Step 2: Convert to fraction form
    21,899.60/32,849.40 = 9,425.60/x
  3. Step 3: Cross multiply
    21,899.60x = 32,849.40 × 9,425.60
  4. Step 4: Simplify right side
    21,899.60x = 309,625,304.64
  5. Step 5: Solve for x
    x = 309,625,304.64/21,899.60
  6. Step 6: Final answer
    x = 14,138.40

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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.