Home / 39,885.40-59,828.10-13,583.80

Finding the Fourth Proportional to 39,885.40, 59,828.10 and 13,583.80

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Solution

The fourth proportional to 39,885.40, 59,828.10 and 13,583.80 is: 20,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,885.40 : 59,828.10 = 13,583.80 : x
  2. Step 2: Convert to fraction form
    39,885.40/59,828.10 = 13,583.80/x
  3. Step 3: Cross multiply
    39,885.40x = 59,828.10 × 13,583.80
  4. Step 4: Simplify right side
    39,885.40x = 812,692,944.78
  5. Step 5: Solve for x
    x = 812,692,944.78/39,885.40
  6. Step 6: Final answer
    x = 20,375.70

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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.