Home / 19,935.81-27,511.29-10,983.11

Finding the Fourth Proportional to 19,935.81, 27,511.29 and 10,983.11

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Solution

The fourth proportional to 19,935.81, 27,511.29 and 10,983.11 is: 15,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.81 : 27,511.29 = 10,983.11 : x
  2. Step 2: Convert to fraction form
    19,935.81/27,511.29 = 10,983.11/x
  3. Step 3: Cross multiply
    19,935.81x = 27,511.29 × 10,983.11
  4. Step 4: Simplify right side
    19,935.81x = 302,159,386.76
  5. Step 5: Solve for x
    x = 302,159,386.76/19,935.81
  6. Step 6: Final answer
    x = 15,156.61

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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.