Home / 40,138.59-55,386.48-23,148.39

Finding the Fourth Proportional to 40,138.59, 55,386.48 and 23,148.39

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Solution

The fourth proportional to 40,138.59, 55,386.48 and 23,148.39 is: 31,942.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.59 : 55,386.48 = 23,148.39 : x
  2. Step 2: Convert to fraction form
    40,138.59/55,386.48 = 23,148.39/x
  3. Step 3: Cross multiply
    40,138.59x = 55,386.48 × 23,148.39
  4. Step 4: Simplify right side
    40,138.59x = 1,282,107,839.77
  5. Step 5: Solve for x
    x = 1,282,107,839.77/40,138.59
  6. Step 6: Final answer
    x = 31,942.02

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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.