Home / 28,418.91-42,626.85-8,697.48

Finding the Fourth Proportional to 28,418.91, 42,626.85 and 8,697.48

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Solution

The fourth proportional to 28,418.91, 42,626.85 and 8,697.48 is: 13,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.91 : 42,626.85 = 8,697.48 : x
  2. Step 2: Convert to fraction form
    28,418.91/42,626.85 = 8,697.48/x
  3. Step 3: Cross multiply
    28,418.91x = 42,626.85 × 8,697.48
  4. Step 4: Simplify right side
    28,418.91x = 370,746,175.34
  5. Step 5: Solve for x
    x = 370,746,175.34/28,418.91
  6. Step 6: Final answer
    x = 13,045.76

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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.