Home / 22,651.09-31,259.31-12,579.70

Finding the Fourth Proportional to 22,651.09, 31,259.31 and 12,579.70

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Solution

The fourth proportional to 22,651.09, 31,259.31 and 12,579.70 is: 17,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,651.09 : 31,259.31 = 12,579.70 : x
  2. Step 2: Convert to fraction form
    22,651.09/31,259.31 = 12,579.70/x
  3. Step 3: Cross multiply
    22,651.09x = 31,259.31 × 12,579.70
  4. Step 4: Simplify right side
    22,651.09x = 393,232,742.01
  5. Step 5: Solve for x
    x = 393,232,742.01/22,651.09
  6. Step 6: Final answer
    x = 17,360.43

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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.