Home / 39,989.80-60,005.40-16,314.70

Finding the Fourth Proportional to 39,989.80, 60,005.40 and 16,314.70

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Solution

The fourth proportional to 39,989.80, 60,005.40 and 16,314.70 is: 24,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.80 : 60,005.40 = 16,314.70 : x
  2. Step 2: Convert to fraction form
    39,989.80/60,005.40 = 16,314.70/x
  3. Step 3: Cross multiply
    39,989.80x = 60,005.40 × 16,314.70
  4. Step 4: Simplify right side
    39,989.80x = 978,970,099.38
  5. Step 5: Solve for x
    x = 978,970,099.38/39,989.80
  6. Step 6: Final answer
    x = 24,480.50

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1.5x scale

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.