Home / 40,485.57-55,870.20-22,581.72

Finding the Fourth Proportional to 40,485.57, 55,870.20 and 22,581.72

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Solution

The fourth proportional to 40,485.57, 55,870.20 and 22,581.72 is: 31,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.57 : 55,870.20 = 22,581.72 : x
  2. Step 2: Convert to fraction form
    40,485.57/55,870.20 = 22,581.72/x
  3. Step 3: Cross multiply
    40,485.57x = 55,870.20 × 22,581.72
  4. Step 4: Simplify right side
    40,485.57x = 1,261,645,212.74
  5. Step 5: Solve for x
    x = 1,261,645,212.74/40,485.57
  6. Step 6: Final answer
    x = 31,162.84

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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.