Home / 20,302.77-30,451.07-7,152.07

Finding the Fourth Proportional to 20,302.77, 30,451.07 and 7,152.07

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Solution

The fourth proportional to 20,302.77, 30,451.07 and 7,152.07 is: 10,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.77 : 30,451.07 = 7,152.07 : x
  2. Step 2: Convert to fraction form
    20,302.77/30,451.07 = 7,152.07/x
  3. Step 3: Cross multiply
    20,302.77x = 30,451.07 × 7,152.07
  4. Step 4: Simplify right side
    20,302.77x = 217,787,996.20
  5. Step 5: Solve for x
    x = 217,787,996.20/20,302.77
  6. Step 6: Final answer
    x = 10,727.01

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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.