Home / 20,199.17-30,304.93-10,345.42

Finding the Fourth Proportional to 20,199.17, 30,304.93 and 10,345.42

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Solution

The fourth proportional to 20,199.17, 30,304.93 and 10,345.42 is: 15,521.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.17 : 30,304.93 = 10,345.42 : x
  2. Step 2: Convert to fraction form
    20,199.17/30,304.93 = 10,345.42/x
  3. Step 3: Cross multiply
    20,199.17x = 30,304.93 × 10,345.42
  4. Step 4: Simplify right side
    20,199.17x = 313,517,228.92
  5. Step 5: Solve for x
    x = 313,517,228.92/20,199.17
  6. Step 6: Final answer
    x = 15,521.29

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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.