Home / 39,374.89-54,335.32-21,469.93

Finding the Fourth Proportional to 39,374.89, 54,335.32 and 21,469.93

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Solution

The fourth proportional to 39,374.89, 54,335.32 and 21,469.93 is: 29,627.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,374.89 : 54,335.32 = 21,469.93 : x
  2. Step 2: Convert to fraction form
    39,374.89/54,335.32 = 21,469.93/x
  3. Step 3: Cross multiply
    39,374.89x = 54,335.32 × 21,469.93
  4. Step 4: Simplify right side
    39,374.89x = 1,166,575,516.93
  5. Step 5: Solve for x
    x = 1,166,575,516.93/39,374.89
  6. Step 6: Final answer
    x = 29,627.40

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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.