Home / 21,631.62-29,851.59-12,071.41

Finding the Fourth Proportional to 21,631.62, 29,851.59 and 12,071.41

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Solution

The fourth proportional to 21,631.62, 29,851.59 and 12,071.41 is: 16,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.62 : 29,851.59 = 12,071.41 : x
  2. Step 2: Convert to fraction form
    21,631.62/29,851.59 = 12,071.41/x
  3. Step 3: Cross multiply
    21,631.62x = 29,851.59 × 12,071.41
  4. Step 4: Simplify right side
    21,631.62x = 360,350,721.68
  5. Step 5: Solve for x
    x = 360,350,721.68/21,631.62
  6. Step 6: Final answer
    x = 16,658.52

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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.