Home / 21,913.26-30,240.32-11,841.71

Finding the Fourth Proportional to 21,913.26, 30,240.32 and 11,841.71

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Solution

The fourth proportional to 21,913.26, 30,240.32 and 11,841.71 is: 16,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.26 : 30,240.32 = 11,841.71 : x
  2. Step 2: Convert to fraction form
    21,913.26/30,240.32 = 11,841.71/x
  3. Step 3: Cross multiply
    21,913.26x = 30,240.32 × 11,841.71
  4. Step 4: Simplify right side
    21,913.26x = 358,096,946.04
  5. Step 5: Solve for x
    x = 358,096,946.04/21,913.26
  6. Step 6: Final answer
    x = 16,341.56

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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.