Home / 20,854.80-31,325.76-17,734.32

Finding the Fourth Proportional to 20,854.80, 31,325.76 and 17,734.32

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Solution

The fourth proportional to 20,854.80, 31,325.76 and 17,734.32 is: 26,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.80 : 31,325.76 = 17,734.32 : x
  2. Step 2: Convert to fraction form
    20,854.80/31,325.76 = 17,734.32/x
  3. Step 3: Cross multiply
    20,854.80x = 31,325.76 × 17,734.32
  4. Step 4: Simplify right side
    20,854.80x = 555,541,052.08
  5. Step 5: Solve for x
    x = 555,541,052.08/20,854.80
  6. Step 6: Final answer
    x = 26,638.52

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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.