Home / 20,308.74-30,476.07-7,838.82

Finding the Fourth Proportional to 20,308.74, 30,476.07 and 7,838.82

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Solution

The fourth proportional to 20,308.74, 30,476.07 and 7,838.82 is: 11,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.74 : 30,476.07 = 7,838.82 : x
  2. Step 2: Convert to fraction form
    20,308.74/30,476.07 = 7,838.82/x
  3. Step 3: Cross multiply
    20,308.74x = 30,476.07 × 7,838.82
  4. Step 4: Simplify right side
    20,308.74x = 238,896,427.04
  5. Step 5: Solve for x
    x = 238,896,427.04/20,308.74
  6. Step 6: Final answer
    x = 11,763.23

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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.