Home / 22,578.31-31,157.96-13,018.13

Finding the Fourth Proportional to 22,578.31, 31,157.96 and 13,018.13

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Solution

The fourth proportional to 22,578.31, 31,157.96 and 13,018.13 is: 17,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.31 : 31,157.96 = 13,018.13 : x
  2. Step 2: Convert to fraction form
    22,578.31/31,157.96 = 13,018.13/x
  3. Step 3: Cross multiply
    22,578.31x = 31,157.96 × 13,018.13
  4. Step 4: Simplify right side
    22,578.31x = 405,618,152.93
  5. Step 5: Solve for x
    x = 405,618,152.93/22,578.31
  6. Step 6: Final answer
    x = 17,964.95

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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.