Home / 20,784.60-31,177.02-6,933.56

Finding the Fourth Proportional to 20,784.60, 31,177.02 and 6,933.56

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Solution

The fourth proportional to 20,784.60, 31,177.02 and 6,933.56 is: 10,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.60 : 31,177.02 = 6,933.56 : x
  2. Step 2: Convert to fraction form
    20,784.60/31,177.02 = 6,933.56/x
  3. Step 3: Cross multiply
    20,784.60x = 31,177.02 × 6,933.56
  4. Step 4: Simplify right side
    20,784.60x = 216,167,738.79
  5. Step 5: Solve for x
    x = 216,167,738.79/20,784.60
  6. Step 6: Final answer
    x = 10,400.38

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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.