Home / 21,617.20-32,348.58-13,299.04

Finding the Fourth Proportional to 21,617.20, 32,348.58 and 13,299.04

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Solution

The fourth proportional to 21,617.20, 32,348.58 and 13,299.04 is: 19,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.20 : 32,348.58 = 13,299.04 : x
  2. Step 2: Convert to fraction form
    21,617.20/32,348.58 = 13,299.04/x
  3. Step 3: Cross multiply
    21,617.20x = 32,348.58 × 13,299.04
  4. Step 4: Simplify right side
    21,617.20x = 430,205,059.36
  5. Step 5: Solve for x
    x = 430,205,059.36/21,617.20
  6. Step 6: Final answer
    x = 19,901.05

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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.