Home / 50,415.12-69,574.67-28,908.20

Finding the Fourth Proportional to 50,415.12, 69,574.67 and 28,908.20

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Solution

The fourth proportional to 50,415.12, 69,574.67 and 28,908.20 is: 39,894.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,415.12 : 69,574.67 = 28,908.20 : x
  2. Step 2: Convert to fraction form
    50,415.12/69,574.67 = 28,908.20/x
  3. Step 3: Cross multiply
    50,415.12x = 69,574.67 × 28,908.20
  4. Step 4: Simplify right side
    50,415.12x = 2,011,277,982.88
  5. Step 5: Solve for x
    x = 2,011,277,982.88/50,415.12
  6. Step 6: Final answer
    x = 39,894.34

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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.