Home / 27,987.80-41,972.88-9,263.60

Finding the Fourth Proportional to 27,987.80, 41,972.88 and 9,263.60

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Solution

The fourth proportional to 27,987.80, 41,972.88 and 9,263.60 is: 13,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.80 : 41,972.88 = 9,263.60 : x
  2. Step 2: Convert to fraction form
    27,987.80/41,972.88 = 9,263.60/x
  3. Step 3: Cross multiply
    27,987.80x = 41,972.88 × 9,263.60
  4. Step 4: Simplify right side
    27,987.80x = 388,819,971.17
  5. Step 5: Solve for x
    x = 388,819,971.17/27,987.80
  6. Step 6: Final answer
    x = 13,892.48

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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.