Home / 40,149.63-55,425.75-28,223.19

Finding the Fourth Proportional to 40,149.63, 55,425.75 and 28,223.19

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Solution

The fourth proportional to 40,149.63, 55,425.75 and 28,223.19 is: 38,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,149.63 : 55,425.75 = 28,223.19 : x
  2. Step 2: Convert to fraction form
    40,149.63/55,425.75 = 28,223.19/x
  3. Step 3: Cross multiply
    40,149.63x = 55,425.75 × 28,223.19
  4. Step 4: Simplify right side
    40,149.63x = 1,564,291,473.14
  5. Step 5: Solve for x
    x = 1,564,291,473.14/40,149.63
  6. Step 6: Final answer
    x = 38,961.54

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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.