Home / 21,631.56-29,850.93-12,071.48

Finding the Fourth Proportional to 21,631.56, 29,850.93 and 12,071.48

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Solution

The fourth proportional to 21,631.56, 29,850.93 and 12,071.48 is: 16,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.56 : 29,850.93 = 12,071.48 : x
  2. Step 2: Convert to fraction form
    21,631.56/29,850.93 = 12,071.48/x
  3. Step 3: Cross multiply
    21,631.56x = 29,850.93 × 12,071.48
  4. Step 4: Simplify right side
    21,631.56x = 360,344,923.13
  5. Step 5: Solve for x
    x = 360,344,923.13/21,631.56
  6. Step 6: Final answer
    x = 16,658.30

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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.