Home / 40,135.59-55,382.34-23,145.39

Finding the Fourth Proportional to 40,135.59, 55,382.34 and 23,145.39

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Solution

The fourth proportional to 40,135.59, 55,382.34 and 23,145.39 is: 31,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.59 : 55,382.34 = 23,145.39 : x
  2. Step 2: Convert to fraction form
    40,135.59/55,382.34 = 23,145.39/x
  3. Step 3: Cross multiply
    40,135.59x = 55,382.34 × 23,145.39
  4. Step 4: Simplify right side
    40,135.59x = 1,281,845,858.41
  5. Step 5: Solve for x
    x = 1,281,845,858.41/40,135.59
  6. Step 6: Final answer
    x = 31,937.89

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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.