Home / 26,121.57-36,048.48-15,367.20

Finding the Fourth Proportional to 26,121.57, 36,048.48 and 15,367.20

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Solution

The fourth proportional to 26,121.57, 36,048.48 and 15,367.20 is: 21,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,121.57 : 36,048.48 = 15,367.20 : x
  2. Step 2: Convert to fraction form
    26,121.57/36,048.48 = 15,367.20/x
  3. Step 3: Cross multiply
    26,121.57x = 36,048.48 × 15,367.20
  4. Step 4: Simplify right side
    26,121.57x = 553,964,009.05
  5. Step 5: Solve for x
    x = 553,964,009.05/26,121.57
  6. Step 6: Final answer
    x = 21,207.15

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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.