Home / 31,428.29-43,371.78-17,088.94

Finding the Fourth Proportional to 31,428.29, 43,371.78 and 17,088.94

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Solution

The fourth proportional to 31,428.29, 43,371.78 and 17,088.94 is: 23,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.29 : 43,371.78 = 17,088.94 : x
  2. Step 2: Convert to fraction form
    31,428.29/43,371.78 = 17,088.94/x
  3. Step 3: Cross multiply
    31,428.29x = 43,371.78 × 17,088.94
  4. Step 4: Simplify right side
    31,428.29x = 741,177,746.11
  5. Step 5: Solve for x
    x = 741,177,746.11/31,428.29
  6. Step 6: Final answer
    x = 23,583.14

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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.