Home / 22,650.19-31,256.20-12,579.28

Finding the Fourth Proportional to 22,650.19, 31,256.20 and 12,579.28

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Solution

The fourth proportional to 22,650.19, 31,256.20 and 12,579.28 is: 17,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,650.19 : 31,256.20 = 12,579.28 : x
  2. Step 2: Convert to fraction form
    22,650.19/31,256.20 = 12,579.28/x
  3. Step 3: Cross multiply
    22,650.19x = 31,256.20 × 12,579.28
  4. Step 4: Simplify right side
    22,650.19x = 393,180,272.36
  5. Step 5: Solve for x
    x = 393,180,272.36/22,650.19
  6. Step 6: Final answer
    x = 17,358.81

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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.