Home / 20,268.17-30,381.47-7,784.83

Finding the Fourth Proportional to 20,268.17, 30,381.47 and 7,784.83

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Solution

The fourth proportional to 20,268.17, 30,381.47 and 7,784.83 is: 11,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.17 : 30,381.47 = 7,784.83 : x
  2. Step 2: Convert to fraction form
    20,268.17/30,381.47 = 7,784.83/x
  3. Step 3: Cross multiply
    20,268.17x = 30,381.47 × 7,784.83
  4. Step 4: Simplify right side
    20,268.17x = 236,514,388.27
  5. Step 5: Solve for x
    x = 236,514,388.27/20,268.17
  6. Step 6: Final answer
    x = 11,669.25

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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.