Home / 40,228.80-55,511.16-22,319.28

Finding the Fourth Proportional to 40,228.80, 55,511.16 and 22,319.28

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Solution

The fourth proportional to 40,228.80, 55,511.16 and 22,319.28 is: 30,798.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,228.80 : 55,511.16 = 22,319.28 : x
  2. Step 2: Convert to fraction form
    40,228.80/55,511.16 = 22,319.28/x
  3. Step 3: Cross multiply
    40,228.80x = 55,511.16 × 22,319.28
  4. Step 4: Simplify right side
    40,228.80x = 1,238,969,123.16
  5. Step 5: Solve for x
    x = 1,238,969,123.16/40,228.80
  6. Step 6: Final answer
    x = 30,798.06

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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.