Home / 22,315.30-30,795.12-12,755.39

Finding the Fourth Proportional to 22,315.30, 30,795.12 and 12,755.39

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Solution

The fourth proportional to 22,315.30, 30,795.12 and 12,755.39 is: 17,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,315.30 : 30,795.12 = 12,755.39 : x
  2. Step 2: Convert to fraction form
    22,315.30/30,795.12 = 12,755.39/x
  3. Step 3: Cross multiply
    22,315.30x = 30,795.12 × 12,755.39
  4. Step 4: Simplify right side
    22,315.30x = 392,803,861.05
  5. Step 5: Solve for x
    x = 392,803,861.05/22,315.30
  6. Step 6: Final answer
    x = 17,602.44

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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.