Home / 19,099.29-28,516.47-17,918.31

Finding the Fourth Proportional to 19,099.29, 28,516.47 and 17,918.31

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Solution

The fourth proportional to 19,099.29, 28,516.47 and 17,918.31 is: 26,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.29 : 28,516.47 = 17,918.31 : x
  2. Step 2: Convert to fraction form
    19,099.29/28,516.47 = 17,918.31/x
  3. Step 3: Cross multiply
    19,099.29x = 28,516.47 × 17,918.31
  4. Step 4: Simplify right side
    19,099.29x = 510,966,949.57
  5. Step 5: Solve for x
    x = 510,966,949.57/19,099.29
  6. Step 6: Final answer
    x = 26,753.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.