Home / 20,459.02-28,234.26-11,506.48

Finding the Fourth Proportional to 20,459.02, 28,234.26 and 11,506.48

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Solution

The fourth proportional to 20,459.02, 28,234.26 and 11,506.48 is: 15,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.02 : 28,234.26 = 11,506.48 : x
  2. Step 2: Convert to fraction form
    20,459.02/28,234.26 = 11,506.48/x
  3. Step 3: Cross multiply
    20,459.02x = 28,234.26 × 11,506.48
  4. Step 4: Simplify right side
    20,459.02x = 324,876,948.00
  5. Step 5: Solve for x
    x = 324,876,948.00/20,459.02
  6. Step 6: Final answer
    x = 15,879.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.