Home / 38,381.59-52,970.48-21,388.60

Finding the Fourth Proportional to 38,381.59, 52,970.48 and 21,388.60

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Solution

The fourth proportional to 38,381.59, 52,970.48 and 21,388.60 is: 29,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.59 : 52,970.48 = 21,388.60 : x
  2. Step 2: Convert to fraction form
    38,381.59/52,970.48 = 21,388.60/x
  3. Step 3: Cross multiply
    38,381.59x = 52,970.48 × 21,388.60
  4. Step 4: Simplify right side
    38,381.59x = 1,132,964,408.53
  5. Step 5: Solve for x
    x = 1,132,964,408.53/38,381.59
  6. Step 6: Final answer
    x = 29,518.43

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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.