Home / 39,408.64-59,122.86-11,328.74

Finding the Fourth Proportional to 39,408.64, 59,122.86 and 11,328.74

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Solution

The fourth proportional to 39,408.64, 59,122.86 and 11,328.74 is: 16,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408.64 : 59,122.86 = 11,328.74 : x
  2. Step 2: Convert to fraction form
    39,408.64/59,122.86 = 11,328.74/x
  3. Step 3: Cross multiply
    39,408.64x = 59,122.86 × 11,328.74
  4. Step 4: Simplify right side
    39,408.64x = 669,787,799.80
  5. Step 5: Solve for x
    x = 669,787,799.80/39,408.64
  6. Step 6: Final answer
    x = 16,995.96

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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.