Home / 27,045.60-37,351.44-20,695.20

Finding the Fourth Proportional to 27,045.60, 37,351.44 and 20,695.20

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Solution

The fourth proportional to 27,045.60, 37,351.44 and 20,695.20 is: 28,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,045.60 : 37,351.44 = 20,695.20 : x
  2. Step 2: Convert to fraction form
    27,045.60/37,351.44 = 20,695.20/x
  3. Step 3: Cross multiply
    27,045.60x = 37,351.44 × 20,695.20
  4. Step 4: Simplify right side
    27,045.60x = 772,995,521.09
  5. Step 5: Solve for x
    x = 772,995,521.09/27,045.60
  6. Step 6: Final answer
    x = 28,581.19

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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.