Home / 20,256.68-30,388.06-7,106.74

Finding the Fourth Proportional to 20,256.68, 30,388.06 and 7,106.74

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Solution

The fourth proportional to 20,256.68, 30,388.06 and 7,106.74 is: 10,661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.68 : 30,388.06 = 7,106.74 : x
  2. Step 2: Convert to fraction form
    20,256.68/30,388.06 = 7,106.74/x
  3. Step 3: Cross multiply
    20,256.68x = 30,388.06 × 7,106.74
  4. Step 4: Simplify right side
    20,256.68x = 215,959,947.79
  5. Step 5: Solve for x
    x = 215,959,947.79/20,256.68
  6. Step 6: Final answer
    x = 10,661.17

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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.