Home / 39,316.14-54,254.48-21,411.09

Finding the Fourth Proportional to 39,316.14, 54,254.48 and 21,411.09

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Solution

The fourth proportional to 39,316.14, 54,254.48 and 21,411.09 is: 29,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,316.14 : 54,254.48 = 21,411.09 : x
  2. Step 2: Convert to fraction form
    39,316.14/54,254.48 = 21,411.09/x
  3. Step 3: Cross multiply
    39,316.14x = 54,254.48 × 21,411.09
  4. Step 4: Simplify right side
    39,316.14x = 1,161,647,447.13
  5. Step 5: Solve for x
    x = 1,161,647,447.13/39,316.14
  6. Step 6: Final answer
    x = 29,546.32

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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.