Home / 19,943.17-27,521.21-10,868.61

Finding the Fourth Proportional to 19,943.17, 27,521.21 and 10,868.61

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Solution

The fourth proportional to 19,943.17, 27,521.21 and 10,868.61 is: 14,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.17 : 27,521.21 = 10,868.61 : x
  2. Step 2: Convert to fraction form
    19,943.17/27,521.21 = 10,868.61/x
  3. Step 3: Cross multiply
    19,943.17x = 27,521.21 × 10,868.61
  4. Step 4: Simplify right side
    19,943.17x = 299,117,298.22
  5. Step 5: Solve for x
    x = 299,117,298.22/19,943.17
  6. Step 6: Final answer
    x = 14,998.48

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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.