Home / 30,204.11-41,658.57-20,521.05

Finding the Fourth Proportional to 30,204.11, 41,658.57 and 20,521.05

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Solution

The fourth proportional to 30,204.11, 41,658.57 and 20,521.05 is: 28,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.11 : 41,658.57 = 20,521.05 : x
  2. Step 2: Convert to fraction form
    30,204.11/41,658.57 = 20,521.05/x
  3. Step 3: Cross multiply
    30,204.11x = 41,658.57 × 20,521.05
  4. Step 4: Simplify right side
    30,204.11x = 854,877,597.90
  5. Step 5: Solve for x
    x = 854,877,597.90/30,204.11
  6. Step 6: Final answer
    x = 28,303.36

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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.