Home / 27,803.11-38,371.04-15,868.25

Finding the Fourth Proportional to 27,803.11, 38,371.04 and 15,868.25

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Solution

The fourth proportional to 27,803.11, 38,371.04 and 15,868.25 is: 21,899.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.11 : 38,371.04 = 15,868.25 : x
  2. Step 2: Convert to fraction form
    27,803.11/38,371.04 = 15,868.25/x
  3. Step 3: Cross multiply
    27,803.11x = 38,371.04 × 15,868.25
  4. Step 4: Simplify right side
    27,803.11x = 608,880,984.28
  5. Step 5: Solve for x
    x = 608,880,984.28/27,803.11
  6. Step 6: Final answer
    x = 21,899.75

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Double scale
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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.