Home / 39,412.16-54,389.94-21,508.32

Finding the Fourth Proportional to 39,412.16, 54,389.94 and 21,508.32

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Solution

The fourth proportional to 39,412.16, 54,389.94 and 21,508.32 is: 29,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,412.16 : 54,389.94 = 21,508.32 : x
  2. Step 2: Convert to fraction form
    39,412.16/54,389.94 = 21,508.32/x
  3. Step 3: Cross multiply
    39,412.16x = 54,389.94 × 21,508.32
  4. Step 4: Simplify right side
    39,412.16x = 1,169,836,234.30
  5. Step 5: Solve for x
    x = 1,169,836,234.30/39,412.16
  6. Step 6: Final answer
    x = 29,682.11

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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.