Home / 28,259.10-42,395.40-8,537.85

Finding the Fourth Proportional to 28,259.10, 42,395.40 and 8,537.85

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Solution

The fourth proportional to 28,259.10, 42,395.40 and 8,537.85 is: 12,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.10 : 42,395.40 = 8,537.85 : x
  2. Step 2: Convert to fraction form
    28,259.10/42,395.40 = 8,537.85/x
  3. Step 3: Cross multiply
    28,259.10x = 42,395.40 × 8,537.85
  4. Step 4: Simplify right side
    28,259.10x = 361,965,565.89
  5. Step 5: Solve for x
    x = 361,965,565.89/28,259.10
  6. Step 6: Final answer
    x = 12,808.81

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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.