Home / 28,253.66-42,394.25-11,618.69

Finding the Fourth Proportional to 28,253.66, 42,394.25 and 11,618.69

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Solution

The fourth proportional to 28,253.66, 42,394.25 and 11,618.69 is: 17,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.66 : 42,394.25 = 11,618.69 : x
  2. Step 2: Convert to fraction form
    28,253.66/42,394.25 = 11,618.69/x
  3. Step 3: Cross multiply
    28,253.66x = 42,394.25 × 11,618.69
  4. Step 4: Simplify right side
    28,253.66x = 492,565,378.47
  5. Step 5: Solve for x
    x = 492,565,378.47/28,253.66
  6. Step 6: Final answer
    x = 17,433.69

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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.