Home / 28,254.34-38,996.36-18,694.42

Finding the Fourth Proportional to 28,254.34, 38,996.36 and 18,694.42

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Solution

The fourth proportional to 28,254.34, 38,996.36 and 18,694.42 is: 25,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.34 : 38,996.36 = 18,694.42 : x
  2. Step 2: Convert to fraction form
    28,254.34/38,996.36 = 18,694.42/x
  3. Step 3: Cross multiply
    28,254.34x = 38,996.36 × 18,694.42
  4. Step 4: Simplify right side
    28,254.34x = 729,014,332.31
  5. Step 5: Solve for x
    x = 729,014,332.31/28,254.34
  6. Step 6: Final answer
    x = 25,801.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.