Home / 28,247.36-42,391.08-12,456.41

Finding the Fourth Proportional to 28,247.36, 42,391.08 and 12,456.41

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Solution

The fourth proportional to 28,247.36, 42,391.08 and 12,456.41 is: 18,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.36 : 42,391.08 = 12,456.41 : x
  2. Step 2: Convert to fraction form
    28,247.36/42,391.08 = 12,456.41/x
  3. Step 3: Cross multiply
    28,247.36x = 42,391.08 × 12,456.41
  4. Step 4: Simplify right side
    28,247.36x = 528,040,460.87
  5. Step 5: Solve for x
    x = 528,040,460.87/28,247.36
  6. Step 6: Final answer
    x = 18,693.45

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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.