Home / 19,815.57-29,569.65-17,712.41

Finding the Fourth Proportional to 19,815.57, 29,569.65 and 17,712.41

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Solution

The fourth proportional to 19,815.57, 29,569.65 and 17,712.41 is: 26,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.57 : 29,569.65 = 17,712.41 : x
  2. Step 2: Convert to fraction form
    19,815.57/29,569.65 = 17,712.41/x
  3. Step 3: Cross multiply
    19,815.57x = 29,569.65 × 17,712.41
  4. Step 4: Simplify right side
    19,815.57x = 523,749,727.39
  5. Step 5: Solve for x
    x = 523,749,727.39/19,815.57
  6. Step 6: Final answer
    x = 26,431.22

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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.