Home / 20,065.32-30,117.42-9,684.36

Finding the Fourth Proportional to 20,065.32, 30,117.42 and 9,684.36

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Solution

The fourth proportional to 20,065.32, 30,117.42 and 9,684.36 is: 14,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.32 : 30,117.42 = 9,684.36 : x
  2. Step 2: Convert to fraction form
    20,065.32/30,117.42 = 9,684.36/x
  3. Step 3: Cross multiply
    20,065.32x = 30,117.42 × 9,684.36
  4. Step 4: Simplify right side
    20,065.32x = 291,667,937.55
  5. Step 5: Solve for x
    x = 291,667,937.55/20,065.32
  6. Step 6: Final answer
    x = 14,535.92

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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.