Home / 28,259.32-42,389.16-8,537.80

Finding the Fourth Proportional to 28,259.32, 42,389.16 and 8,537.80

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Solution

The fourth proportional to 28,259.32, 42,389.16 and 8,537.80 is: 12,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.32 : 42,389.16 = 8,537.80 : x
  2. Step 2: Convert to fraction form
    28,259.32/42,389.16 = 8,537.80/x
  3. Step 3: Cross multiply
    28,259.32x = 42,389.16 × 8,537.80
  4. Step 4: Simplify right side
    28,259.32x = 361,910,170.25
  5. Step 5: Solve for x
    x = 361,910,170.25/28,259.32
  6. Step 6: Final answer
    x = 12,806.75

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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.