Home / 39,703.24-54,790.56-21,799.40

Finding the Fourth Proportional to 39,703.24, 54,790.56 and 21,799.40

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Solution

The fourth proportional to 39,703.24, 54,790.56 and 21,799.40 is: 30,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.24 : 54,790.56 = 21,799.40 : x
  2. Step 2: Convert to fraction form
    39,703.24/54,790.56 = 21,799.40/x
  3. Step 3: Cross multiply
    39,703.24x = 54,790.56 × 21,799.40
  4. Step 4: Simplify right side
    39,703.24x = 1,194,401,333.66
  5. Step 5: Solve for x
    x = 1,194,401,333.66/39,703.24
  6. Step 6: Final answer
    x = 30,083.22

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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.