Home / 28,369.24-42,513.76-11,718.88

Finding the Fourth Proportional to 28,369.24, 42,513.76 and 11,718.88

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Solution

The fourth proportional to 28,369.24, 42,513.76 and 11,718.88 is: 17,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.24 : 42,513.76 = 11,718.88 : x
  2. Step 2: Convert to fraction form
    28,369.24/42,513.76 = 11,718.88/x
  3. Step 3: Cross multiply
    28,369.24x = 42,513.76 × 11,718.88
  4. Step 4: Simplify right side
    28,369.24x = 498,213,560.15
  5. Step 5: Solve for x
    x = 498,213,560.15/28,369.24
  6. Step 6: Final answer
    x = 17,561.75

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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.