Home / 28,368.30-42,545.61-12,564.60

Finding the Fourth Proportional to 28,368.30, 42,545.61 and 12,564.60

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Solution

The fourth proportional to 28,368.30, 42,545.61 and 12,564.60 is: 18,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.30 : 42,545.61 = 12,564.60 : x
  2. Step 2: Convert to fraction form
    28,368.30/42,545.61 = 12,564.60/x
  3. Step 3: Cross multiply
    28,368.30x = 42,545.61 × 12,564.60
  4. Step 4: Simplify right side
    28,368.30x = 534,568,571.41
  5. Step 5: Solve for x
    x = 534,568,571.41/28,368.30
  6. Step 6: Final answer
    x = 18,843.87

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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.