Home / 27,620.56-38,116.44-15,045.40

Finding the Fourth Proportional to 27,620.56, 38,116.44 and 15,045.40

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Solution

The fourth proportional to 27,620.56, 38,116.44 and 15,045.40 is: 20,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.56 : 38,116.44 = 15,045.40 : x
  2. Step 2: Convert to fraction form
    27,620.56/38,116.44 = 15,045.40/x
  3. Step 3: Cross multiply
    27,620.56x = 38,116.44 × 15,045.40
  4. Step 4: Simplify right side
    27,620.56x = 573,477,086.38
  5. Step 5: Solve for x
    x = 573,477,086.38/27,620.56
  6. Step 6: Final answer
    x = 20,762.69

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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.