Home / 41,345.20-62,017.80-13,639.60

Finding the Fourth Proportional to 41,345.20, 62,017.80 and 13,639.60

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Solution

The fourth proportional to 41,345.20, 62,017.80 and 13,639.60 is: 20,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,345.20 : 62,017.80 = 13,639.60 : x
  2. Step 2: Convert to fraction form
    41,345.20/62,017.80 = 13,639.60/x
  3. Step 3: Cross multiply
    41,345.20x = 62,017.80 × 13,639.60
  4. Step 4: Simplify right side
    41,345.20x = 845,897,984.88
  5. Step 5: Solve for x
    x = 845,897,984.88/41,345.20
  6. Step 6: Final answer
    x = 20,459.40

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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.