Home / 21,340.68-32,010.60-9,645.72

Finding the Fourth Proportional to 21,340.68, 32,010.60 and 9,645.72

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Solution

The fourth proportional to 21,340.68, 32,010.60 and 9,645.72 is: 14,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.68 : 32,010.60 = 9,645.72 : x
  2. Step 2: Convert to fraction form
    21,340.68/32,010.60 = 9,645.72/x
  3. Step 3: Cross multiply
    21,340.68x = 32,010.60 × 9,645.72
  4. Step 4: Simplify right side
    21,340.68x = 308,765,284.63
  5. Step 5: Solve for x
    x = 308,765,284.63/21,340.68
  6. Step 6: Final answer
    x = 14,468.39

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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.