Home / 21,154.56-31,739.52-17,283.84

Finding the Fourth Proportional to 21,154.56, 31,739.52 and 17,283.84

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Solution

The fourth proportional to 21,154.56, 31,739.52 and 17,283.84 is: 25,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.56 : 31,739.52 = 17,283.84 : x
  2. Step 2: Convert to fraction form
    21,154.56/31,739.52 = 17,283.84/x
  3. Step 3: Cross multiply
    21,154.56x = 31,739.52 × 17,283.84
  4. Step 4: Simplify right side
    21,154.56x = 548,580,785.36
  5. Step 5: Solve for x
    x = 548,580,785.36/21,154.56
  6. Step 6: Final answer
    x = 25,932.03

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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.