Home / 21,545.19-29,730.42-11,984.67

Finding the Fourth Proportional to 21,545.19, 29,730.42 and 11,984.67

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Solution

The fourth proportional to 21,545.19, 29,730.42 and 11,984.67 is: 16,537.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.19 : 29,730.42 = 11,984.67 : x
  2. Step 2: Convert to fraction form
    21,545.19/29,730.42 = 11,984.67/x
  3. Step 3: Cross multiply
    21,545.19x = 29,730.42 × 11,984.67
  4. Step 4: Simplify right side
    21,545.19x = 356,309,272.66
  5. Step 5: Solve for x
    x = 356,309,272.66/21,545.19
  6. Step 6: Final answer
    x = 16,537.76

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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.