Home / 36,908.15-50,931.36-20,992.25

Finding the Fourth Proportional to 36,908.15, 50,931.36 and 20,992.25

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Solution

The fourth proportional to 36,908.15, 50,931.36 and 20,992.25 is: 28,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,908.15 : 50,931.36 = 20,992.25 : x
  2. Step 2: Convert to fraction form
    36,908.15/50,931.36 = 20,992.25/x
  3. Step 3: Cross multiply
    36,908.15x = 50,931.36 × 20,992.25
  4. Step 4: Simplify right side
    36,908.15x = 1,069,163,841.96
  5. Step 5: Solve for x
    x = 1,069,163,841.96/36,908.15
  6. Step 6: Final answer
    x = 28,968.24

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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.