Home / 36,509.47-50,380.61-20,987.58

Finding the Fourth Proportional to 36,509.47, 50,380.61 and 20,987.58

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Solution

The fourth proportional to 36,509.47, 50,380.61 and 20,987.58 is: 28,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,509.47 : 50,380.61 = 20,987.58 : x
  2. Step 2: Convert to fraction form
    36,509.47/50,380.61 = 20,987.58/x
  3. Step 3: Cross multiply
    36,509.47x = 50,380.61 × 20,987.58
  4. Step 4: Simplify right side
    36,509.47x = 1,057,367,082.82
  5. Step 5: Solve for x
    x = 1,057,367,082.82/36,509.47
  6. Step 6: Final answer
    x = 28,961.45

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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.