Home / 22,657.21-34,121.42-20,637.07

Finding the Fourth Proportional to 22,657.21, 34,121.42 and 20,637.07

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Solution

The fourth proportional to 22,657.21, 34,121.42 and 20,637.07 is: 31,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.21 : 34,121.42 = 20,637.07 : x
  2. Step 2: Convert to fraction form
    22,657.21/34,121.42 = 20,637.07/x
  3. Step 3: Cross multiply
    22,657.21x = 34,121.42 × 20,637.07
  4. Step 4: Simplify right side
    22,657.21x = 704,166,133.04
  5. Step 5: Solve for x
    x = 704,166,133.04/22,657.21
  6. Step 6: Final answer
    x = 31,079.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.