Home / 24,856.78-34,302.36-13,678.78

Finding the Fourth Proportional to 24,856.78, 34,302.36 and 13,678.78

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Solution

The fourth proportional to 24,856.78, 34,302.36 and 13,678.78 is: 18,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,856.78 : 34,302.36 = 13,678.78 : x
  2. Step 2: Convert to fraction form
    24,856.78/34,302.36 = 13,678.78/x
  3. Step 3: Cross multiply
    24,856.78x = 34,302.36 × 13,678.78
  4. Step 4: Simplify right side
    24,856.78x = 469,214,530.09
  5. Step 5: Solve for x
    x = 469,214,530.09/24,856.78
  6. Step 6: Final answer
    x = 18,876.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.