Home / 40,669.40-61,006.28-12,608.84

Finding the Fourth Proportional to 40,669.40, 61,006.28 and 12,608.84

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Solution

The fourth proportional to 40,669.40, 61,006.28 and 12,608.84 is: 18,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,669.40 : 61,006.28 = 12,608.84 : x
  2. Step 2: Convert to fraction form
    40,669.40/61,006.28 = 12,608.84/x
  3. Step 3: Cross multiply
    40,669.40x = 61,006.28 × 12,608.84
  4. Step 4: Simplify right side
    40,669.40x = 769,218,512.99
  5. Step 5: Solve for x
    x = 769,218,512.99/40,669.40
  6. Step 6: Final answer
    x = 18,913.94

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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.