Home / 39,929.80-55,099.38-23,161

Finding the Fourth Proportional to 39,929.80, 55,099.38 and 23,161

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Solution

The fourth proportional to 39,929.80, 55,099.38 and 23,161 is: 31,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929.80 : 55,099.38 = 23,161 : x
  2. Step 2: Convert to fraction form
    39,929.80/55,099.38 = 23,161/x
  3. Step 3: Cross multiply
    39,929.80x = 55,099.38 × 23,161
  4. Step 4: Simplify right side
    39,929.80x = 1,276,156,740.18
  5. Step 5: Solve for x
    x = 1,276,156,740.18/39,929.80
  6. Step 6: Final answer
    x = 31,960.01

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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.