Home / 28,229.80-42,344.70-27,711.40

Finding the Fourth Proportional to 28,229.80, 42,344.70 and 27,711.40

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Solution

The fourth proportional to 28,229.80, 42,344.70 and 27,711.40 is: 41,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.80 : 42,344.70 = 27,711.40 : x
  2. Step 2: Convert to fraction form
    28,229.80/42,344.70 = 27,711.40/x
  3. Step 3: Cross multiply
    28,229.80x = 42,344.70 × 27,711.40
  4. Step 4: Simplify right side
    28,229.80x = 1,173,430,919.58
  5. Step 5: Solve for x
    x = 1,173,430,919.58/28,229.80
  6. Step 6: Final answer
    x = 41,567.10

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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.