Home / 36,972.08-51,020.72-20,205.20

Finding the Fourth Proportional to 36,972.08, 51,020.72 and 20,205.20

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Solution

The fourth proportional to 36,972.08, 51,020.72 and 20,205.20 is: 27,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,972.08 : 51,020.72 = 20,205.20 : x
  2. Step 2: Convert to fraction form
    36,972.08/51,020.72 = 20,205.20/x
  3. Step 3: Cross multiply
    36,972.08x = 51,020.72 × 20,205.20
  4. Step 4: Simplify right side
    36,972.08x = 1,030,883,851.74
  5. Step 5: Solve for x
    x = 1,030,883,851.74/36,972.08
  6. Step 6: Final answer
    x = 27,882.77

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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.