Home / 40,778.60-56,270.69-22,870.15

Finding the Fourth Proportional to 40,778.60, 56,270.69 and 22,870.15

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Solution

The fourth proportional to 40,778.60, 56,270.69 and 22,870.15 is: 31,558.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,778.60 : 56,270.69 = 22,870.15 : x
  2. Step 2: Convert to fraction form
    40,778.60/56,270.69 = 22,870.15/x
  3. Step 3: Cross multiply
    40,778.60x = 56,270.69 × 22,870.15
  4. Step 4: Simplify right side
    40,778.60x = 1,286,918,725.20
  5. Step 5: Solve for x
    x = 1,286,918,725.20/40,778.60
  6. Step 6: Final answer
    x = 31,558.68

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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.