Home / 22,652.79-31,224.50-15,382.60

Finding the Fourth Proportional to 22,652.79, 31,224.50 and 15,382.60

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Solution

The fourth proportional to 22,652.79, 31,224.50 and 15,382.60 is: 21,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,652.79 : 31,224.50 = 15,382.60 : x
  2. Step 2: Convert to fraction form
    22,652.79/31,224.50 = 15,382.60/x
  3. Step 3: Cross multiply
    22,652.79x = 31,224.50 × 15,382.60
  4. Step 4: Simplify right side
    22,652.79x = 480,313,760.66
  5. Step 5: Solve for x
    x = 480,313,760.66/22,652.79
  6. Step 6: Final answer
    x = 21,203.30

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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.