Home / 22,986.80-31,729.82-13,554.76

Finding the Fourth Proportional to 22,986.80, 31,729.82 and 13,554.76

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Solution

The fourth proportional to 22,986.80, 31,729.82 and 13,554.76 is: 18,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,986.80 : 31,729.82 = 13,554.76 : x
  2. Step 2: Convert to fraction form
    22,986.80/31,729.82 = 13,554.76/x
  3. Step 3: Cross multiply
    22,986.80x = 31,729.82 × 13,554.76
  4. Step 4: Simplify right side
    22,986.80x = 430,090,094.94
  5. Step 5: Solve for x
    x = 430,090,094.94/22,986.80
  6. Step 6: Final answer
    x = 18,710.31

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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.