Home / 25,005.78-34,507.89-13,827.78

Finding the Fourth Proportional to 25,005.78, 34,507.89 and 13,827.78

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Solution

The fourth proportional to 25,005.78, 34,507.89 and 13,827.78 is: 19,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,005.78 : 34,507.89 = 13,827.78 : x
  2. Step 2: Convert to fraction form
    25,005.78/34,507.89 = 13,827.78/x
  3. Step 3: Cross multiply
    25,005.78x = 34,507.89 × 13,827.78
  4. Step 4: Simplify right side
    25,005.78x = 477,167,511.18
  5. Step 5: Solve for x
    x = 477,167,511.18/25,005.78
  6. Step 6: Final answer
    x = 19,082.29

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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.