Home / 22,079.80-30,477.95-13,127.26

Finding the Fourth Proportional to 22,079.80, 30,477.95 and 13,127.26

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Solution

The fourth proportional to 22,079.80, 30,477.95 and 13,127.26 is: 18,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,079.80 : 30,477.95 = 13,127.26 : x
  2. Step 2: Convert to fraction form
    22,079.80/30,477.95 = 13,127.26/x
  3. Step 3: Cross multiply
    22,079.80x = 30,477.95 × 13,127.26
  4. Step 4: Simplify right side
    22,079.80x = 400,091,815.82
  5. Step 5: Solve for x
    x = 400,091,815.82/22,079.80
  6. Step 6: Final answer
    x = 18,120.27

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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.