Home / 31,427.79-43,371.09-17,088.44

Finding the Fourth Proportional to 31,427.79, 43,371.09 and 17,088.44

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Solution

The fourth proportional to 31,427.79, 43,371.09 and 17,088.44 is: 23,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.79 : 43,371.09 = 17,088.44 : x
  2. Step 2: Convert to fraction form
    31,427.79/43,371.09 = 17,088.44/x
  3. Step 3: Cross multiply
    31,427.79x = 43,371.09 × 17,088.44
  4. Step 4: Simplify right side
    31,427.79x = 741,143,966.90
  5. Step 5: Solve for x
    x = 741,143,966.90/31,427.79
  6. Step 6: Final answer
    x = 23,582.44

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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.