Home / 40,995.30-61,496.55-12,538.68

Finding the Fourth Proportional to 40,995.30, 61,496.55 and 12,538.68

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Solution

The fourth proportional to 40,995.30, 61,496.55 and 12,538.68 is: 18,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,995.30 : 61,496.55 = 12,538.68 : x
  2. Step 2: Convert to fraction form
    40,995.30/61,496.55 = 12,538.68/x
  3. Step 3: Cross multiply
    40,995.30x = 61,496.55 × 12,538.68
  4. Step 4: Simplify right side
    40,995.30x = 771,085,561.55
  5. Step 5: Solve for x
    x = 771,085,561.55/40,995.30
  6. Step 6: Final answer
    x = 18,809.12

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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.