Home / 40,822.50-61,235.86-11,239.68

Finding the Fourth Proportional to 40,822.50, 61,235.86 and 11,239.68

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Solution

The fourth proportional to 40,822.50, 61,235.86 and 11,239.68 is: 16,860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,822.50 : 61,235.86 = 11,239.68 : x
  2. Step 2: Convert to fraction form
    40,822.50/61,235.86 = 11,239.68/x
  3. Step 3: Cross multiply
    40,822.50x = 61,235.86 × 11,239.68
  4. Step 4: Simplify right side
    40,822.50x = 688,271,470.92
  5. Step 5: Solve for x
    x = 688,271,470.92/40,822.50
  6. Step 6: Final answer
    x = 16,860.10

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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.