Home / 40,420.59-55,778.55-22,515.42

Finding the Fourth Proportional to 40,420.59, 55,778.55 and 22,515.42

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Solution

The fourth proportional to 40,420.59, 55,778.55 and 22,515.42 is: 31,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.59 : 55,778.55 = 22,515.42 : x
  2. Step 2: Convert to fraction form
    40,420.59/55,778.55 = 22,515.42/x
  3. Step 3: Cross multiply
    40,420.59x = 55,778.55 × 22,515.42
  4. Step 4: Simplify right side
    40,420.59x = 1,255,877,480.24
  5. Step 5: Solve for x
    x = 1,255,877,480.24/40,420.59
  6. Step 6: Final answer
    x = 31,070.24

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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.