Home / 20,003.94-29,985.39-7,521.66

Finding the Fourth Proportional to 20,003.94, 29,985.39 and 7,521.66

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Solution

The fourth proportional to 20,003.94, 29,985.39 and 7,521.66 is: 11,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.94 : 29,985.39 = 7,521.66 : x
  2. Step 2: Convert to fraction form
    20,003.94/29,985.39 = 7,521.66/x
  3. Step 3: Cross multiply
    20,003.94x = 29,985.39 × 7,521.66
  4. Step 4: Simplify right side
    20,003.94x = 225,539,908.55
  5. Step 5: Solve for x
    x = 225,539,908.55/20,003.94
  6. Step 6: Final answer
    x = 11,274.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.