Home / 19,989.18-27,593.28-13,636.74

Finding the Fourth Proportional to 19,989.18, 27,593.28 and 13,636.74

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Solution

The fourth proportional to 19,989.18, 27,593.28 and 13,636.74 is: 18,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.18 : 27,593.28 = 13,636.74 : x
  2. Step 2: Convert to fraction form
    19,989.18/27,593.28 = 13,636.74/x
  3. Step 3: Cross multiply
    19,989.18x = 27,593.28 × 13,636.74
  4. Step 4: Simplify right side
    19,989.18x = 376,282,385.11
  5. Step 5: Solve for x
    x = 376,282,385.11/19,989.18
  6. Step 6: Final answer
    x = 18,824.30

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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.