Home / 22,579.74-31,153.67-13,018.87

Finding the Fourth Proportional to 22,579.74, 31,153.67 and 13,018.87

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Solution

The fourth proportional to 22,579.74, 31,153.67 and 13,018.87 is: 17,962.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.74 : 31,153.67 = 13,018.87 : x
  2. Step 2: Convert to fraction form
    22,579.74/31,153.67 = 13,018.87/x
  3. Step 3: Cross multiply
    22,579.74x = 31,153.67 × 13,018.87
  4. Step 4: Simplify right side
    22,579.74x = 405,585,651.24
  5. Step 5: Solve for x
    x = 405,585,651.24/22,579.74
  6. Step 6: Final answer
    x = 17,962.37

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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.