Home / 20,345.86-30,534.41-9,104.68

Finding the Fourth Proportional to 20,345.86, 30,534.41 and 9,104.68

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Solution

The fourth proportional to 20,345.86, 30,534.41 and 9,104.68 is: 13,664.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.86 : 30,534.41 = 9,104.68 : x
  2. Step 2: Convert to fraction form
    20,345.86/30,534.41 = 9,104.68/x
  3. Step 3: Cross multiply
    20,345.86x = 30,534.41 × 9,104.68
  4. Step 4: Simplify right side
    20,345.86x = 278,006,032.04
  5. Step 5: Solve for x
    x = 278,006,032.04/20,345.86
  6. Step 6: Final answer
    x = 13,664.01

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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.