Home / 20,066.32-30,118.92-9,685.36

Finding the Fourth Proportional to 20,066.32, 30,118.92 and 9,685.36

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Solution

The fourth proportional to 20,066.32, 30,118.92 and 9,685.36 is: 14,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.32 : 30,118.92 = 9,685.36 : x
  2. Step 2: Convert to fraction form
    20,066.32/30,118.92 = 9,685.36/x
  3. Step 3: Cross multiply
    20,066.32x = 30,118.92 × 9,685.36
  4. Step 4: Simplify right side
    20,066.32x = 291,712,583.01
  5. Step 5: Solve for x
    x = 291,712,583.01/20,066.32
  6. Step 6: Final answer
    x = 14,537.42

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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.