Home / 36,281.60-54,422.40-9,986.30

Finding the Fourth Proportional to 36,281.60, 54,422.40 and 9,986.30

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Solution

The fourth proportional to 36,281.60, 54,422.40 and 9,986.30 is: 14,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,281.60 : 54,422.40 = 9,986.30 : x
  2. Step 2: Convert to fraction form
    36,281.60/54,422.40 = 9,986.30/x
  3. Step 3: Cross multiply
    36,281.60x = 54,422.40 × 9,986.30
  4. Step 4: Simplify right side
    36,281.60x = 543,478,413.12
  5. Step 5: Solve for x
    x = 543,478,413.12/36,281.60
  6. Step 6: Final answer
    x = 14,979.45

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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.