Home / 22,537.31-31,133.30-20,517.35

Finding the Fourth Proportional to 22,537.31, 31,133.30 and 20,517.35

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Solution

The fourth proportional to 22,537.31, 31,133.30 and 20,517.35 is: 28,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,537.31 : 31,133.30 = 20,517.35 : x
  2. Step 2: Convert to fraction form
    22,537.31/31,133.30 = 20,517.35/x
  3. Step 3: Cross multiply
    22,537.31x = 31,133.30 × 20,517.35
  4. Step 4: Simplify right side
    22,537.31x = 638,772,554.50
  5. Step 5: Solve for x
    x = 638,772,554.50/22,537.31
  6. Step 6: Final answer
    x = 28,342.90

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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.