Home / 22,146.40-30,559.04-12,715.44

Finding the Fourth Proportional to 22,146.40, 30,559.04 and 12,715.44

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Solution

The fourth proportional to 22,146.40, 30,559.04 and 12,715.44 is: 17,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,146.40 : 30,559.04 = 12,715.44 : x
  2. Step 2: Convert to fraction form
    22,146.40/30,559.04 = 12,715.44/x
  3. Step 3: Cross multiply
    22,146.40x = 30,559.04 × 12,715.44
  4. Step 4: Simplify right side
    22,146.40x = 388,571,639.58
  5. Step 5: Solve for x
    x = 388,571,639.58/22,146.40
  6. Step 6: Final answer
    x = 17,545.59

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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.