Home / 21,943.17-30,282.39-12,511.26

Finding the Fourth Proportional to 21,943.17, 30,282.39 and 12,511.26

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Solution

The fourth proportional to 21,943.17, 30,282.39 and 12,511.26 is: 17,266.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.17 : 30,282.39 = 12,511.26 : x
  2. Step 2: Convert to fraction form
    21,943.17/30,282.39 = 12,511.26/x
  3. Step 3: Cross multiply
    21,943.17x = 30,282.39 × 12,511.26
  4. Step 4: Simplify right side
    21,943.17x = 378,870,854.71
  5. Step 5: Solve for x
    x = 378,870,854.71/21,943.17
  6. Step 6: Final answer
    x = 17,266.00

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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.