Home / 21,348.24-29,463.12-12,276.96

Finding the Fourth Proportional to 21,348.24, 29,463.12 and 12,276.96

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Solution

The fourth proportional to 21,348.24, 29,463.12 and 12,276.96 is: 16,943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.24 : 29,463.12 = 12,276.96 : x
  2. Step 2: Convert to fraction form
    21,348.24/29,463.12 = 12,276.96/x
  3. Step 3: Cross multiply
    21,348.24x = 29,463.12 × 12,276.96
  4. Step 4: Simplify right side
    21,348.24x = 361,717,545.72
  5. Step 5: Solve for x
    x = 361,717,545.72/21,348.24
  6. Step 6: Final answer
    x = 16,943.67

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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.