Home / 21,197.18-29,245.34-12,243.50

Finding the Fourth Proportional to 21,197.18, 29,245.34 and 12,243.50

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Solution

The fourth proportional to 21,197.18, 29,245.34 and 12,243.50 is: 16,892.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.18 : 29,245.34 = 12,243.50 : x
  2. Step 2: Convert to fraction form
    21,197.18/29,245.34 = 12,243.50/x
  3. Step 3: Cross multiply
    21,197.18x = 29,245.34 × 12,243.50
  4. Step 4: Simplify right side
    21,197.18x = 358,065,320.29
  5. Step 5: Solve for x
    x = 358,065,320.29/21,197.18
  6. Step 6: Final answer
    x = 16,892.12

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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.