Home / 40,438.98-55,806.15-22,288.70

Finding the Fourth Proportional to 40,438.98, 55,806.15 and 22,288.70

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Solution

The fourth proportional to 40,438.98, 55,806.15 and 22,288.70 is: 30,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,438.98 : 55,806.15 = 22,288.70 : x
  2. Step 2: Convert to fraction form
    40,438.98/55,806.15 = 22,288.70/x
  3. Step 3: Cross multiply
    40,438.98x = 55,806.15 × 22,288.70
  4. Step 4: Simplify right side
    40,438.98x = 1,243,846,535.51
  5. Step 5: Solve for x
    x = 1,243,846,535.51/40,438.98
  6. Step 6: Final answer
    x = 30,758.60

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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.