Home / 21,488.13-32,219.22-9,639.75

Finding the Fourth Proportional to 21,488.13, 32,219.22 and 9,639.75

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Solution

The fourth proportional to 21,488.13, 32,219.22 and 9,639.75 is: 14,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.13 : 32,219.22 = 9,639.75 : x
  2. Step 2: Convert to fraction form
    21,488.13/32,219.22 = 9,639.75/x
  3. Step 3: Cross multiply
    21,488.13x = 32,219.22 × 9,639.75
  4. Step 4: Simplify right side
    21,488.13x = 310,585,226.00
  5. Step 5: Solve for x
    x = 310,585,226.00/21,488.13
  6. Step 6: Final answer
    x = 14,453.80

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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.