Home / 22,153.31-30,571.45-12,081.57

Finding the Fourth Proportional to 22,153.31, 30,571.45 and 12,081.57

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Solution

The fourth proportional to 22,153.31, 30,571.45 and 12,081.57 is: 16,672.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,153.31 : 30,571.45 = 12,081.57 : x
  2. Step 2: Convert to fraction form
    22,153.31/30,571.45 = 12,081.57/x
  3. Step 3: Cross multiply
    22,153.31x = 30,571.45 × 12,081.57
  4. Step 4: Simplify right side
    22,153.31x = 369,351,113.18
  5. Step 5: Solve for x
    x = 369,351,113.18/22,153.31
  6. Step 6: Final answer
    x = 16,672.50

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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.