Home / 22,991.46-31,720.05-15,038.34

Finding the Fourth Proportional to 22,991.46, 31,720.05 and 15,038.34

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Solution

The fourth proportional to 22,991.46, 31,720.05 and 15,038.34 is: 20,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.46 : 31,720.05 = 15,038.34 : x
  2. Step 2: Convert to fraction form
    22,991.46/31,720.05 = 15,038.34/x
  3. Step 3: Cross multiply
    22,991.46x = 31,720.05 × 15,038.34
  4. Step 4: Simplify right side
    22,991.46x = 477,016,896.72
  5. Step 5: Solve for x
    x = 477,016,896.72/22,991.46
  6. Step 6: Final answer
    x = 20,747.57

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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.