Home / 40,155.64-55,396.24-28,225.89

Finding the Fourth Proportional to 40,155.64, 55,396.24 and 28,225.89

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Solution

The fourth proportional to 40,155.64, 55,396.24 and 28,225.89 is: 38,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.64 : 55,396.24 = 28,225.89 : x
  2. Step 2: Convert to fraction form
    40,155.64/55,396.24 = 28,225.89/x
  3. Step 3: Cross multiply
    40,155.64x = 55,396.24 × 28,225.89
  4. Step 4: Simplify right side
    40,155.64x = 1,563,608,106.09
  5. Step 5: Solve for x
    x = 1,563,608,106.09/40,155.64
  6. Step 6: Final answer
    x = 38,938.69

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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.