Home / 22,156.96-30,574.48-12,220.32

Finding the Fourth Proportional to 22,156.96, 30,574.48 and 12,220.32

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Solution

The fourth proportional to 22,156.96, 30,574.48 and 12,220.32 is: 16,862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.96 : 30,574.48 = 12,220.32 : x
  2. Step 2: Convert to fraction form
    22,156.96/30,574.48 = 12,220.32/x
  3. Step 3: Cross multiply
    22,156.96x = 30,574.48 × 12,220.32
  4. Step 4: Simplify right side
    22,156.96x = 373,629,929.43
  5. Step 5: Solve for x
    x = 373,629,929.43/22,156.96
  6. Step 6: Final answer
    x = 16,862.87

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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.