Home / 21,544.17-29,730.60-12,112.71

Finding the Fourth Proportional to 21,544.17, 29,730.60 and 12,112.71

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Solution

The fourth proportional to 21,544.17, 29,730.60 and 12,112.71 is: 16,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.17 : 29,730.60 = 12,112.71 : x
  2. Step 2: Convert to fraction form
    21,544.17/29,730.60 = 12,112.71/x
  3. Step 3: Cross multiply
    21,544.17x = 29,730.60 × 12,112.71
  4. Step 4: Simplify right side
    21,544.17x = 360,118,135.93
  5. Step 5: Solve for x
    x = 360,118,135.93/21,544.17
  6. Step 6: Final answer
    x = 16,715.34

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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.