Home / 27,620.28-38,116.36-15,045

Finding the Fourth Proportional to 27,620.28, 38,116.36 and 15,045

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Solution

The fourth proportional to 27,620.28, 38,116.36 and 15,045 is: 20,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.28 : 38,116.36 = 15,045 : x
  2. Step 2: Convert to fraction form
    27,620.28/38,116.36 = 15,045/x
  3. Step 3: Cross multiply
    27,620.28x = 38,116.36 × 15,045
  4. Step 4: Simplify right side
    27,620.28x = 573,460,636.20
  5. Step 5: Solve for x
    x = 573,460,636.20/27,620.28
  6. Step 6: Final answer
    x = 20,762.30

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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.