Home / 22,760.06-31,439.54-20,637.99

Finding the Fourth Proportional to 22,760.06, 31,439.54 and 20,637.99

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Solution

The fourth proportional to 22,760.06, 31,439.54 and 20,637.99 is: 28,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,760.06 : 31,439.54 = 20,637.99 : x
  2. Step 2: Convert to fraction form
    22,760.06/31,439.54 = 20,637.99/x
  3. Step 3: Cross multiply
    22,760.06x = 31,439.54 × 20,637.99
  4. Step 4: Simplify right side
    22,760.06x = 648,848,963.72
  5. Step 5: Solve for x
    x = 648,848,963.72/22,760.06
  6. Step 6: Final answer
    x = 28,508.23

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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.