Home / 50,021.80-69,036.04-28,805.20

Finding the Fourth Proportional to 50,021.80, 69,036.04 and 28,805.20

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Solution

The fourth proportional to 50,021.80, 69,036.04 and 28,805.20 is: 39,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,021.80 : 69,036.04 = 28,805.20 : x
  2. Step 2: Convert to fraction form
    50,021.80/69,036.04 = 28,805.20/x
  3. Step 3: Cross multiply
    50,021.80x = 69,036.04 × 28,805.20
  4. Step 4: Simplify right side
    50,021.80x = 1,988,596,939.41
  5. Step 5: Solve for x
    x = 1,988,596,939.41/50,021.80
  6. Step 6: Final answer
    x = 39,754.61

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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.