Home / 25,334.80-34,964.98-21,078.34

Finding the Fourth Proportional to 25,334.80, 34,964.98 and 21,078.34

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Solution

The fourth proportional to 25,334.80, 34,964.98 and 21,078.34 is: 29,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,334.80 : 34,964.98 = 21,078.34 : x
  2. Step 2: Convert to fraction form
    25,334.80/34,964.98 = 21,078.34/x
  3. Step 3: Cross multiply
    25,334.80x = 34,964.98 × 21,078.34
  4. Step 4: Simplify right side
    25,334.80x = 737,003,596.42
  5. Step 5: Solve for x
    x = 737,003,596.42/25,334.80
  6. Step 6: Final answer
    x = 29,090.57

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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.