Home / 30,724.87-42,402.45-17,297.23

Finding the Fourth Proportional to 30,724.87, 42,402.45 and 17,297.23

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Solution

The fourth proportional to 30,724.87, 42,402.45 and 17,297.23 is: 23,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.87 : 42,402.45 = 17,297.23 : x
  2. Step 2: Convert to fraction form
    30,724.87/42,402.45 = 17,297.23/x
  3. Step 3: Cross multiply
    30,724.87x = 42,402.45 × 17,297.23
  4. Step 4: Simplify right side
    30,724.87x = 733,444,930.21
  5. Step 5: Solve for x
    x = 733,444,930.21/30,724.87
  6. Step 6: Final answer
    x = 23,871.38

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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.