Home / 22,370.31-30,871.08-12,299.78

Finding the Fourth Proportional to 22,370.31, 30,871.08 and 12,299.78

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Solution

The fourth proportional to 22,370.31, 30,871.08 and 12,299.78 is: 16,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,370.31 : 30,871.08 = 12,299.78 : x
  2. Step 2: Convert to fraction form
    22,370.31/30,871.08 = 12,299.78/x
  3. Step 3: Cross multiply
    22,370.31x = 30,871.08 × 12,299.78
  4. Step 4: Simplify right side
    22,370.31x = 379,707,492.36
  5. Step 5: Solve for x
    x = 379,707,492.36/22,370.31
  6. Step 6: Final answer
    x = 16,973.73

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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.