Home / 39,318.55-54,260.55-21,414.51

Finding the Fourth Proportional to 39,318.55, 54,260.55 and 21,414.51

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Solution

The fourth proportional to 39,318.55, 54,260.55 and 21,414.51 is: 29,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.55 : 54,260.55 = 21,414.51 : x
  2. Step 2: Convert to fraction form
    39,318.55/54,260.55 = 21,414.51/x
  3. Step 3: Cross multiply
    39,318.55x = 54,260.55 × 21,414.51
  4. Step 4: Simplify right side
    39,318.55x = 1,161,963,090.58
  5. Step 5: Solve for x
    x = 1,161,963,090.58/39,318.55
  6. Step 6: Final answer
    x = 29,552.54

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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.