Home / 39,374.18-54,335.18-21,469.53

Finding the Fourth Proportional to 39,374.18, 54,335.18 and 21,469.53

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Solution

The fourth proportional to 39,374.18, 54,335.18 and 21,469.53 is: 29,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,374.18 : 54,335.18 = 21,469.53 : x
  2. Step 2: Convert to fraction form
    39,374.18/54,335.18 = 21,469.53/x
  3. Step 3: Cross multiply
    39,374.18x = 54,335.18 × 21,469.53
  4. Step 4: Simplify right side
    39,374.18x = 1,166,550,777.07
  5. Step 5: Solve for x
    x = 1,166,550,777.07/39,374.18
  6. Step 6: Final answer
    x = 29,627.30

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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.