Home / 22,945.19-31,675.49-15,388.76

Finding the Fourth Proportional to 22,945.19, 31,675.49 and 15,388.76

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Solution

The fourth proportional to 22,945.19, 31,675.49 and 15,388.76 is: 21,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,945.19 : 31,675.49 = 15,388.76 : x
  2. Step 2: Convert to fraction form
    22,945.19/31,675.49 = 15,388.76/x
  3. Step 3: Cross multiply
    22,945.19x = 31,675.49 × 15,388.76
  4. Step 4: Simplify right side
    22,945.19x = 487,446,436.55
  5. Step 5: Solve for x
    x = 487,446,436.55/22,945.19
  6. Step 6: Final answer
    x = 21,243.95

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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.