Home / 20,282.32-30,417.68-7,801.52

Finding the Fourth Proportional to 20,282.32, 30,417.68 and 7,801.52

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Solution

The fourth proportional to 20,282.32, 30,417.68 and 7,801.52 is: 11,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.32 : 30,417.68 = 7,801.52 : x
  2. Step 2: Convert to fraction form
    20,282.32/30,417.68 = 7,801.52/x
  3. Step 3: Cross multiply
    20,282.32x = 30,417.68 × 7,801.52
  4. Step 4: Simplify right side
    20,282.32x = 237,304,138.87
  5. Step 5: Solve for x
    x = 237,304,138.87/20,282.32
  6. Step 6: Final answer
    x = 11,700.05

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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.