Home / 21,439.09-32,159.85-6,650.11

Finding the Fourth Proportional to 21,439.09, 32,159.85 and 6,650.11

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Solution

The fourth proportional to 21,439.09, 32,159.85 and 6,650.11 is: 9,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.09 : 32,159.85 = 6,650.11 : x
  2. Step 2: Convert to fraction form
    21,439.09/32,159.85 = 6,650.11/x
  3. Step 3: Cross multiply
    21,439.09x = 32,159.85 × 6,650.11
  4. Step 4: Simplify right side
    21,439.09x = 213,866,459.68
  5. Step 5: Solve for x
    x = 213,866,459.68/21,439.09
  6. Step 6: Final answer
    x = 9,975.54

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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.