Home / 21,488.80-32,150.40-13,167.04

Finding the Fourth Proportional to 21,488.80, 32,150.40 and 13,167.04

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Solution

The fourth proportional to 21,488.80, 32,150.40 and 13,167.04 is: 19,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.80 : 32,150.40 = 13,167.04 : x
  2. Step 2: Convert to fraction form
    21,488.80/32,150.40 = 13,167.04/x
  3. Step 3: Cross multiply
    21,488.80x = 32,150.40 × 13,167.04
  4. Step 4: Simplify right side
    21,488.80x = 423,325,602.82
  5. Step 5: Solve for x
    x = 423,325,602.82/21,488.80
  6. Step 6: Final answer
    x = 19,699.83

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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.