Home / 21,426.28-32,135.10-5,842.60

Finding the Fourth Proportional to 21,426.28, 32,135.10 and 5,842.60

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Solution

The fourth proportional to 21,426.28, 32,135.10 and 5,842.60 is: 8,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.28 : 32,135.10 = 5,842.60 : x
  2. Step 2: Convert to fraction form
    21,426.28/32,135.10 = 5,842.60/x
  3. Step 3: Cross multiply
    21,426.28x = 32,135.10 × 5,842.60
  4. Step 4: Simplify right side
    21,426.28x = 187,752,535.26
  5. Step 5: Solve for x
    x = 187,752,535.26/21,426.28
  6. Step 6: Final answer
    x = 8,762.72

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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.