Home / 28,338.25-42,509.13-8,618.26

Finding the Fourth Proportional to 28,338.25, 42,509.13 and 8,618.26

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Solution

The fourth proportional to 28,338.25, 42,509.13 and 8,618.26 is: 12,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.25 : 42,509.13 = 8,618.26 : x
  2. Step 2: Convert to fraction form
    28,338.25/42,509.13 = 8,618.26/x
  3. Step 3: Cross multiply
    28,338.25x = 42,509.13 × 8,618.26
  4. Step 4: Simplify right side
    28,338.25x = 366,354,734.71
  5. Step 5: Solve for x
    x = 366,354,734.71/28,338.25
  6. Step 6: Final answer
    x = 12,927.92

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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.