Home / 20,443.40-28,216.14-12,062.60

Finding the Fourth Proportional to 20,443.40, 28,216.14 and 12,062.60

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Solution

The fourth proportional to 20,443.40, 28,216.14 and 12,062.60 is: 16,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443.40 : 28,216.14 = 12,062.60 : x
  2. Step 2: Convert to fraction form
    20,443.40/28,216.14 = 12,062.60/x
  3. Step 3: Cross multiply
    20,443.40x = 28,216.14 × 12,062.60
  4. Step 4: Simplify right side
    20,443.40x = 340,360,010.36
  5. Step 5: Solve for x
    x = 340,360,010.36/20,443.40
  6. Step 6: Final answer
    x = 16,648.89

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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.