Home / 39,238.22-54,148.48-21,333.22

Finding the Fourth Proportional to 39,238.22, 54,148.48 and 21,333.22

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Solution

The fourth proportional to 39,238.22, 54,148.48 and 21,333.22 is: 29,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.22 : 54,148.48 = 21,333.22 : x
  2. Step 2: Convert to fraction form
    39,238.22/54,148.48 = 21,333.22/x
  3. Step 3: Cross multiply
    39,238.22x = 54,148.48 × 21,333.22
  4. Step 4: Simplify right side
    39,238.22x = 1,155,161,436.51
  5. Step 5: Solve for x
    x = 1,155,161,436.51/39,238.22
  6. Step 6: Final answer
    x = 29,439.70

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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.