Home / 36,282.75-54,421.70-9,987.72

Finding the Fourth Proportional to 36,282.75, 54,421.70 and 9,987.72

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Solution

The fourth proportional to 36,282.75, 54,421.70 and 9,987.72 is: 14,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,282.75 : 54,421.70 = 9,987.72 : x
  2. Step 2: Convert to fraction form
    36,282.75/54,421.70 = 9,987.72/x
  3. Step 3: Cross multiply
    36,282.75x = 54,421.70 × 9,987.72
  4. Step 4: Simplify right side
    36,282.75x = 543,548,651.59
  5. Step 5: Solve for x
    x = 543,548,651.59/36,282.75
  6. Step 6: Final answer
    x = 14,980.91

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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.