Home / 20,071.44-27,681.76-15,047.44

Finding the Fourth Proportional to 20,071.44, 27,681.76 and 15,047.44

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Solution

The fourth proportional to 20,071.44, 27,681.76 and 15,047.44 is: 20,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.44 : 27,681.76 = 15,047.44 : x
  2. Step 2: Convert to fraction form
    20,071.44/27,681.76 = 15,047.44/x
  3. Step 3: Cross multiply
    20,071.44x = 27,681.76 × 15,047.44
  4. Step 4: Simplify right side
    20,071.44x = 416,539,622.69
  5. Step 5: Solve for x
    x = 416,539,622.69/20,071.44
  6. Step 6: Final answer
    x = 20,752.85

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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.