Home / 21,379.40-32,066.08-7,339.18

Finding the Fourth Proportional to 21,379.40, 32,066.08 and 7,339.18

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Solution

The fourth proportional to 21,379.40, 32,066.08 and 7,339.18 is: 11,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.40 : 32,066.08 = 7,339.18 : x
  2. Step 2: Convert to fraction form
    21,379.40/32,066.08 = 7,339.18/x
  3. Step 3: Cross multiply
    21,379.40x = 32,066.08 × 7,339.18
  4. Step 4: Simplify right side
    21,379.40x = 235,338,733.01
  5. Step 5: Solve for x
    x = 235,338,733.01/21,379.40
  6. Step 6: Final answer
    x = 11,007.73

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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.