Home / 26,357.20-36,386.16-20,375.36

Finding the Fourth Proportional to 26,357.20, 36,386.16 and 20,375.36

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Solution

The fourth proportional to 26,357.20, 36,386.16 and 20,375.36 is: 28,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,357.20 : 36,386.16 = 20,375.36 : x
  2. Step 2: Convert to fraction form
    26,357.20/36,386.16 = 20,375.36/x
  3. Step 3: Cross multiply
    26,357.20x = 36,386.16 × 20,375.36
  4. Step 4: Simplify right side
    26,357.20x = 741,381,109.02
  5. Step 5: Solve for x
    x = 741,381,109.02/26,357.20
  6. Step 6: Final answer
    x = 28,128.22

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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.