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Finding the Fourth Proportional to 25,677.78, 35,431.78 and 14,345.85

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Solution

The fourth proportional to 25,677.78, 35,431.78 and 14,345.85 is: 19,795.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,677.78 : 35,431.78 = 14,345.85 : x
  2. Step 2: Convert to fraction form
    25,677.78/35,431.78 = 14,345.85/x
  3. Step 3: Cross multiply
    25,677.78x = 35,431.78 × 14,345.85
  4. Step 4: Simplify right side
    25,677.78x = 508,299,001.11
  5. Step 5: Solve for x
    x = 508,299,001.11/25,677.78
  6. Step 6: Final answer
    x = 19,795.29

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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.