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Finding the Fourth Proportional to 25,394.70, 35,019 and 16,885.89

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Solution

The fourth proportional to 25,394.70, 35,019 and 16,885.89 is: 23,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,394.70 : 35,019 = 16,885.89 : x
  2. Step 2: Convert to fraction form
    25,394.70/35,019 = 16,885.89/x
  3. Step 3: Cross multiply
    25,394.70x = 35,019 × 16,885.89
  4. Step 4: Simplify right side
    25,394.70x = 591,326,981.91
  5. Step 5: Solve for x
    x = 591,326,981.91/25,394.70
  6. Step 6: Final answer
    x = 23,285.45

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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.