Home / 20,165.34-30,247.32-7,684.91

Finding the Fourth Proportional to 20,165.34, 30,247.32 and 7,684.91

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Solution

The fourth proportional to 20,165.34, 30,247.32 and 7,684.91 is: 11,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.34 : 30,247.32 = 7,684.91 : x
  2. Step 2: Convert to fraction form
    20,165.34/30,247.32 = 7,684.91/x
  3. Step 3: Cross multiply
    20,165.34x = 30,247.32 × 7,684.91
  4. Step 4: Simplify right side
    20,165.34x = 232,447,931.94
  5. Step 5: Solve for x
    x = 232,447,931.94/20,165.34
  6. Step 6: Final answer
    x = 11,527.10

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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.