Home / 21,439.90-32,154.96-9,587.44

Finding the Fourth Proportional to 21,439.90, 32,154.96 and 9,587.44

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Solution

The fourth proportional to 21,439.90, 32,154.96 and 9,587.44 is: 14,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.90 : 32,154.96 = 9,587.44 : x
  2. Step 2: Convert to fraction form
    21,439.90/32,154.96 = 9,587.44/x
  3. Step 3: Cross multiply
    21,439.90x = 32,154.96 × 9,587.44
  4. Step 4: Simplify right side
    21,439.90x = 308,283,749.70
  5. Step 5: Solve for x
    x = 308,283,749.70/21,439.90
  6. Step 6: Final answer
    x = 14,378.97

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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.