Home / 20,852.52-31,278.89-5,270.16

Finding the Fourth Proportional to 20,852.52, 31,278.89 and 5,270.16

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Solution

The fourth proportional to 20,852.52, 31,278.89 and 5,270.16 is: 7,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.52 : 31,278.89 = 5,270.16 : x
  2. Step 2: Convert to fraction form
    20,852.52/31,278.89 = 5,270.16/x
  3. Step 3: Cross multiply
    20,852.52x = 31,278.89 × 5,270.16
  4. Step 4: Simplify right side
    20,852.52x = 164,844,728.57
  5. Step 5: Solve for x
    x = 164,844,728.57/20,852.52
  6. Step 6: Final answer
    x = 7,905.27

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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.