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Finding the Fourth Proportional to 22,703.80, 31,328.22 and 12,630.22

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Solution

The fourth proportional to 22,703.80, 31,328.22 and 12,630.22 is: 17,428.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.80 : 31,328.22 = 12,630.22 : x
  2. Step 2: Convert to fraction form
    22,703.80/31,328.22 = 12,630.22/x
  3. Step 3: Cross multiply
    22,703.80x = 31,328.22 × 12,630.22
  4. Step 4: Simplify right side
    22,703.80x = 395,682,310.81
  5. Step 5: Solve for x
    x = 395,682,310.81/22,703.80
  6. Step 6: Final answer
    x = 17,428.02

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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.