Home / 17,117.80-25,676.70-5,432.20

Finding the Fourth Proportional to 17,117.80, 25,676.70 and 5,432.20

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Solution

The fourth proportional to 17,117.80, 25,676.70 and 5,432.20 is: 8,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.80 : 25,676.70 = 5,432.20 : x
  2. Step 2: Convert to fraction form
    17,117.80/25,676.70 = 5,432.20/x
  3. Step 3: Cross multiply
    17,117.80x = 25,676.70 × 5,432.20
  4. Step 4: Simplify right side
    17,117.80x = 139,480,969.74
  5. Step 5: Solve for x
    x = 139,480,969.74/17,117.80
  6. Step 6: Final answer
    x = 8,148.30

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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.