Home / 39,252.42-54,169.34-21,348.45

Finding the Fourth Proportional to 39,252.42, 54,169.34 and 21,348.45

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Solution

The fourth proportional to 39,252.42, 54,169.34 and 21,348.45 is: 29,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,252.42 : 54,169.34 = 21,348.45 : x
  2. Step 2: Convert to fraction form
    39,252.42/54,169.34 = 21,348.45/x
  3. Step 3: Cross multiply
    39,252.42x = 54,169.34 × 21,348.45
  4. Step 4: Simplify right side
    39,252.42x = 1,156,431,339.78
  5. Step 5: Solve for x
    x = 1,156,431,339.78/39,252.42
  6. Step 6: Final answer
    x = 29,461.40

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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.