Home / 40,425.48-55,383.11-38,910.35

Finding the Fourth Proportional to 40,425.48, 55,383.11 and 38,910.35

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Solution

The fourth proportional to 40,425.48, 55,383.11 and 38,910.35 is: 53,307.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,425.48 : 55,383.11 = 38,910.35 : x
  2. Step 2: Convert to fraction form
    40,425.48/55,383.11 = 38,910.35/x
  3. Step 3: Cross multiply
    40,425.48x = 55,383.11 × 38,910.35
  4. Step 4: Simplify right side
    40,425.48x = 2,154,976,291.40
  5. Step 5: Solve for x
    x = 2,154,976,291.40/40,425.48
  6. Step 6: Final answer
    x = 53,307.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.