Home / 16,820.90-25,231.35-5,132.60

Finding the Fourth Proportional to 16,820.90, 25,231.35 and 5,132.60

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Solution

The fourth proportional to 16,820.90, 25,231.35 and 5,132.60 is: 7,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.90 : 25,231.35 = 5,132.60 : x
  2. Step 2: Convert to fraction form
    16,820.90/25,231.35 = 5,132.60/x
  3. Step 3: Cross multiply
    16,820.90x = 25,231.35 × 5,132.60
  4. Step 4: Simplify right side
    16,820.90x = 129,502,427.01
  5. Step 5: Solve for x
    x = 129,502,427.01/16,820.90
  6. Step 6: Final answer
    x = 7,698.90

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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.