Home / 22,631.06-31,228.31-12,556.88

Finding the Fourth Proportional to 22,631.06, 31,228.31 and 12,556.88

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Solution

The fourth proportional to 22,631.06, 31,228.31 and 12,556.88 is: 17,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.06 : 31,228.31 = 12,556.88 : x
  2. Step 2: Convert to fraction form
    22,631.06/31,228.31 = 12,556.88/x
  3. Step 3: Cross multiply
    22,631.06x = 31,228.31 × 12,556.88
  4. Step 4: Simplify right side
    22,631.06x = 392,130,078.49
  5. Step 5: Solve for x
    x = 392,130,078.49/22,631.06
  6. Step 6: Final answer
    x = 17,327.08

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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.