Home / 40,891.13-61,336.69-13,189.13

Finding the Fourth Proportional to 40,891.13, 61,336.69 and 13,189.13

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Solution

The fourth proportional to 40,891.13, 61,336.69 and 13,189.13 is: 19,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,891.13 : 61,336.69 = 13,189.13 : x
  2. Step 2: Convert to fraction form
    40,891.13/61,336.69 = 13,189.13/x
  3. Step 3: Cross multiply
    40,891.13x = 61,336.69 × 13,189.13
  4. Step 4: Simplify right side
    40,891.13x = 808,977,578.18
  5. Step 5: Solve for x
    x = 808,977,578.18/40,891.13
  6. Step 6: Final answer
    x = 19,783.69

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Double scale
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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.