Home / 40,420.71-55,782.32-22,515.73

Finding the Fourth Proportional to 40,420.71, 55,782.32 and 22,515.73

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Solution

The fourth proportional to 40,420.71, 55,782.32 and 22,515.73 is: 31,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.71 : 55,782.32 = 22,515.73 : x
  2. Step 2: Convert to fraction form
    40,420.71/55,782.32 = 22,515.73/x
  3. Step 3: Cross multiply
    40,420.71x = 55,782.32 × 22,515.73
  4. Step 4: Simplify right side
    40,420.71x = 1,255,979,403.86
  5. Step 5: Solve for x
    x = 1,255,979,403.86/40,420.71
  6. Step 6: Final answer
    x = 31,072.67

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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.