Home / 39,765.32-59,647.99-18,689.89

Finding the Fourth Proportional to 39,765.32, 59,647.99 and 18,689.89

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Solution

The fourth proportional to 39,765.32, 59,647.99 and 18,689.89 is: 28,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.32 : 59,647.99 = 18,689.89 : x
  2. Step 2: Convert to fraction form
    39,765.32/59,647.99 = 18,689.89/x
  3. Step 3: Cross multiply
    39,765.32x = 59,647.99 × 18,689.89
  4. Step 4: Simplify right side
    39,765.32x = 1,114,814,073.58
  5. Step 5: Solve for x
    x = 1,114,814,073.58/39,765.32
  6. Step 6: Final answer
    x = 28,034.83

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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.