Home / 21,561.80-32,346.12-6,767.42

Finding the Fourth Proportional to 21,561.80, 32,346.12 and 6,767.42

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Solution

The fourth proportional to 21,561.80, 32,346.12 and 6,767.42 is: 10,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.80 : 32,346.12 = 6,767.42 : x
  2. Step 2: Convert to fraction form
    21,561.80/32,346.12 = 6,767.42/x
  3. Step 3: Cross multiply
    21,561.80x = 32,346.12 × 6,767.42
  4. Step 4: Simplify right side
    21,561.80x = 218,899,779.41
  5. Step 5: Solve for x
    x = 218,899,779.41/21,561.80
  6. Step 6: Final answer
    x = 10,152.20

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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.