Home / 40,144.39-60,271.86-20,436.68

Finding the Fourth Proportional to 40,144.39, 60,271.86 and 20,436.68

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Solution

The fourth proportional to 40,144.39, 60,271.86 and 20,436.68 is: 30,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,144.39 : 60,271.86 = 20,436.68 : x
  2. Step 2: Convert to fraction form
    40,144.39/60,271.86 = 20,436.68/x
  3. Step 3: Cross multiply
    40,144.39x = 60,271.86 × 20,436.68
  4. Step 4: Simplify right side
    40,144.39x = 1,231,756,715.82
  5. Step 5: Solve for x
    x = 1,231,756,715.82/40,144.39
  6. Step 6: Final answer
    x = 30,683.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.