Home / 19,841.25-27,382.28-11,457.75

Finding the Fourth Proportional to 19,841.25, 27,382.28 and 11,457.75

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Solution

The fourth proportional to 19,841.25, 27,382.28 and 11,457.75 is: 15,812.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.25 : 27,382.28 = 11,457.75 : x
  2. Step 2: Convert to fraction form
    19,841.25/27,382.28 = 11,457.75/x
  3. Step 3: Cross multiply
    19,841.25x = 27,382.28 × 11,457.75
  4. Step 4: Simplify right side
    19,841.25x = 313,739,261.38
  5. Step 5: Solve for x
    x = 313,739,261.38/19,841.25
  6. Step 6: Final answer
    x = 15,812.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.