Home / 39,677.50-59,531.24-20,956.78

Finding the Fourth Proportional to 39,677.50, 59,531.24 and 20,956.78

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Solution

The fourth proportional to 39,677.50, 59,531.24 and 20,956.78 is: 31,443.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,677.50 : 59,531.24 = 20,956.78 : x
  2. Step 2: Convert to fraction form
    39,677.50/59,531.24 = 20,956.78/x
  3. Step 3: Cross multiply
    39,677.50x = 59,531.24 × 20,956.78
  4. Step 4: Simplify right side
    39,677.50x = 1,247,583,099.81
  5. Step 5: Solve for x
    x = 1,247,583,099.81/39,677.50
  6. Step 6: Final answer
    x = 31,443.09

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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.