Home / 38,415.22-57,648.78-13,455.46

Finding the Fourth Proportional to 38,415.22, 57,648.78 and 13,455.46

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Solution

The fourth proportional to 38,415.22, 57,648.78 and 13,455.46 is: 20,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.22 : 57,648.78 = 13,455.46 : x
  2. Step 2: Convert to fraction form
    38,415.22/57,648.78 = 13,455.46/x
  3. Step 3: Cross multiply
    38,415.22x = 57,648.78 × 13,455.46
  4. Step 4: Simplify right side
    38,415.22x = 775,690,853.34
  5. Step 5: Solve for x
    x = 775,690,853.34/38,415.22
  6. Step 6: Final answer
    x = 20,192.28

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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.