Home / 39,184.34-54,072.90-21,278.96

Finding the Fourth Proportional to 39,184.34, 54,072.90 and 21,278.96

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Solution

The fourth proportional to 39,184.34, 54,072.90 and 21,278.96 is: 29,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,184.34 : 54,072.90 = 21,278.96 : x
  2. Step 2: Convert to fraction form
    39,184.34/54,072.90 = 21,278.96/x
  3. Step 3: Cross multiply
    39,184.34x = 54,072.90 × 21,278.96
  4. Step 4: Simplify right side
    39,184.34x = 1,150,615,076.18
  5. Step 5: Solve for x
    x = 1,150,615,076.18/39,184.34
  6. Step 6: Final answer
    x = 29,364.16

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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.