Home / 22,650.60-31,256.31-12,578.58

Finding the Fourth Proportional to 22,650.60, 31,256.31 and 12,578.58

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Solution

The fourth proportional to 22,650.60, 31,256.31 and 12,578.58 is: 17,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,650.60 : 31,256.31 = 12,578.58 : x
  2. Step 2: Convert to fraction form
    22,650.60/31,256.31 = 12,578.58/x
  3. Step 3: Cross multiply
    22,650.60x = 31,256.31 × 12,578.58
  4. Step 4: Simplify right side
    22,650.60x = 393,159,995.84
  5. Step 5: Solve for x
    x = 393,159,995.84/22,650.60
  6. Step 6: Final answer
    x = 17,357.60

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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.