Home / 27,907.20-41,860.80-15,422.40

Finding the Fourth Proportional to 27,907.20, 41,860.80 and 15,422.40

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Solution

The fourth proportional to 27,907.20, 41,860.80 and 15,422.40 is: 23,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.20 : 41,860.80 = 15,422.40 : x
  2. Step 2: Convert to fraction form
    27,907.20/41,860.80 = 15,422.40/x
  3. Step 3: Cross multiply
    27,907.20x = 41,860.80 × 15,422.40
  4. Step 4: Simplify right side
    27,907.20x = 645,594,001.92
  5. Step 5: Solve for x
    x = 645,594,001.92/27,907.20
  6. Step 6: Final answer
    x = 23,133.60

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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.