Home / 22,578.95-31,158.32-13,018.65

Finding the Fourth Proportional to 22,578.95, 31,158.32 and 13,018.65

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Solution

The fourth proportional to 22,578.95, 31,158.32 and 13,018.65 is: 17,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.95 : 31,158.32 = 13,018.65 : x
  2. Step 2: Convert to fraction form
    22,578.95/31,158.32 = 13,018.65/x
  3. Step 3: Cross multiply
    22,578.95x = 31,158.32 × 13,018.65
  4. Step 4: Simplify right side
    22,578.95x = 405,639,197.57
  5. Step 5: Solve for x
    x = 405,639,197.57/22,578.95
  6. Step 6: Final answer
    x = 17,965.37

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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.