Home / 21,854.08-32,751.84-20,454.40

Finding the Fourth Proportional to 21,854.08, 32,751.84 and 20,454.40

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Solution

The fourth proportional to 21,854.08, 32,751.84 and 20,454.40 is: 30,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,854.08 : 32,751.84 = 20,454.40 : x
  2. Step 2: Convert to fraction form
    21,854.08/32,751.84 = 20,454.40/x
  3. Step 3: Cross multiply
    21,854.08x = 32,751.84 × 20,454.40
  4. Step 4: Simplify right side
    21,854.08x = 669,919,236.10
  5. Step 5: Solve for x
    x = 669,919,236.10/21,854.08
  6. Step 6: Final answer
    x = 30,654.20

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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.