Home / 38,717.04-53,536.68-30,745.20

Finding the Fourth Proportional to 38,717.04, 53,536.68 and 30,745.20

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Solution

The fourth proportional to 38,717.04, 53,536.68 and 30,745.20 is: 42,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,717.04 : 53,536.68 = 30,745.20 : x
  2. Step 2: Convert to fraction form
    38,717.04/53,536.68 = 30,745.20/x
  3. Step 3: Cross multiply
    38,717.04x = 53,536.68 × 30,745.20
  4. Step 4: Simplify right side
    38,717.04x = 1,645,995,933.94
  5. Step 5: Solve for x
    x = 1,645,995,933.94/38,717.04
  6. Step 6: Final answer
    x = 42,513.48

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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.