Home / 38,253.40-52,788.64-21,257.21

Finding the Fourth Proportional to 38,253.40, 52,788.64 and 21,257.21

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Solution

The fourth proportional to 38,253.40, 52,788.64 and 21,257.21 is: 29,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,253.40 : 52,788.64 = 21,257.21 : x
  2. Step 2: Convert to fraction form
    38,253.40/52,788.64 = 21,257.21/x
  3. Step 3: Cross multiply
    38,253.40x = 52,788.64 × 21,257.21
  4. Step 4: Simplify right side
    38,253.40x = 1,122,138,835.87
  5. Step 5: Solve for x
    x = 1,122,138,835.87/38,253.40
  6. Step 6: Final answer
    x = 29,334.36

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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.