Home / 21,631.68-29,850.84-12,071.98

Finding the Fourth Proportional to 21,631.68, 29,850.84 and 12,071.98

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Solution

The fourth proportional to 21,631.68, 29,850.84 and 12,071.98 is: 16,658.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.68 : 29,850.84 = 12,071.98 : x
  2. Step 2: Convert to fraction form
    21,631.68/29,850.84 = 12,071.98/x
  3. Step 3: Cross multiply
    21,631.68x = 29,850.84 × 12,071.98
  4. Step 4: Simplify right side
    21,631.68x = 360,358,743.46
  5. Step 5: Solve for x
    x = 360,358,743.46/21,631.68
  6. Step 6: Final answer
    x = 16,658.84

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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.