Home / 21,561.08-32,281.52-11,008.40

Finding the Fourth Proportional to 21,561.08, 32,281.52 and 11,008.40

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Solution

The fourth proportional to 21,561.08, 32,281.52 and 11,008.40 is: 16,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.08 : 32,281.52 = 11,008.40 : x
  2. Step 2: Convert to fraction form
    21,561.08/32,281.52 = 11,008.40/x
  3. Step 3: Cross multiply
    21,561.08x = 32,281.52 × 11,008.40
  4. Step 4: Simplify right side
    21,561.08x = 355,367,884.77
  5. Step 5: Solve for x
    x = 355,367,884.77/21,561.08
  6. Step 6: Final answer
    x = 16,481.91

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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.