Home / 20,247.84-30,381.48-7,106.40

Finding the Fourth Proportional to 20,247.84, 30,381.48 and 7,106.40

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Solution

The fourth proportional to 20,247.84, 30,381.48 and 7,106.40 is: 10,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.84 : 30,381.48 = 7,106.40 : x
  2. Step 2: Convert to fraction form
    20,247.84/30,381.48 = 7,106.40/x
  3. Step 3: Cross multiply
    20,247.84x = 30,381.48 × 7,106.40
  4. Step 4: Simplify right side
    20,247.84x = 215,902,949.47
  5. Step 5: Solve for x
    x = 215,902,949.47/20,247.84
  6. Step 6: Final answer
    x = 10,663.01

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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.