Home / 22,775.56-31,427.88-13,342.36

Finding the Fourth Proportional to 22,775.56, 31,427.88 and 13,342.36

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Solution

The fourth proportional to 22,775.56, 31,427.88 and 13,342.36 is: 18,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.56 : 31,427.88 = 13,342.36 : x
  2. Step 2: Convert to fraction form
    22,775.56/31,427.88 = 13,342.36/x
  3. Step 3: Cross multiply
    22,775.56x = 31,427.88 × 13,342.36
  4. Step 4: Simplify right side
    22,775.56x = 419,322,089.00
  5. Step 5: Solve for x
    x = 419,322,089.00/22,775.56
  6. Step 6: Final answer
    x = 18,411.06

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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.