Home / 28,275.85-42,415.17-10,747.03

Finding the Fourth Proportional to 28,275.85, 42,415.17 and 10,747.03

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Solution

The fourth proportional to 28,275.85, 42,415.17 and 10,747.03 is: 16,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.85 : 42,415.17 = 10,747.03 : x
  2. Step 2: Convert to fraction form
    28,275.85/42,415.17 = 10,747.03/x
  3. Step 3: Cross multiply
    28,275.85x = 42,415.17 × 10,747.03
  4. Step 4: Simplify right side
    28,275.85x = 455,837,104.45
  5. Step 5: Solve for x
    x = 455,837,104.45/28,275.85
  6. Step 6: Final answer
    x = 16,121.08

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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.