Home / 20,524.05-30,781.65-6,485.16

Finding the Fourth Proportional to 20,524.05, 30,781.65 and 6,485.16

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Solution

The fourth proportional to 20,524.05, 30,781.65 and 6,485.16 is: 9,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.05 : 30,781.65 = 6,485.16 : x
  2. Step 2: Convert to fraction form
    20,524.05/30,781.65 = 6,485.16/x
  3. Step 3: Cross multiply
    20,524.05x = 30,781.65 × 6,485.16
  4. Step 4: Simplify right side
    20,524.05x = 199,623,925.31
  5. Step 5: Solve for x
    x = 199,623,925.31/20,524.05
  6. Step 6: Final answer
    x = 9,726.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.