Home / 30,593.80-42,174.76-21,625.48

Finding the Fourth Proportional to 30,593.80, 42,174.76 and 21,625.48

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Solution

The fourth proportional to 30,593.80, 42,174.76 and 21,625.48 is: 29,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,593.80 : 42,174.76 = 21,625.48 : x
  2. Step 2: Convert to fraction form
    30,593.80/42,174.76 = 21,625.48/x
  3. Step 3: Cross multiply
    30,593.80x = 42,174.76 × 21,625.48
  4. Step 4: Simplify right side
    30,593.80x = 912,049,428.88
  5. Step 5: Solve for x
    x = 912,049,428.88/30,593.80
  6. Step 6: Final answer
    x = 29,811.58

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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.