Home / 30,143.16-41,636.34-23,155.56

Finding the Fourth Proportional to 30,143.16, 41,636.34 and 23,155.56

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Solution

The fourth proportional to 30,143.16, 41,636.34 and 23,155.56 is: 31,984.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.16 : 41,636.34 = 23,155.56 : x
  2. Step 2: Convert to fraction form
    30,143.16/41,636.34 = 23,155.56/x
  3. Step 3: Cross multiply
    30,143.16x = 41,636.34 × 23,155.56
  4. Step 4: Simplify right side
    30,143.16x = 964,112,769.05
  5. Step 5: Solve for x
    x = 964,112,769.05/30,143.16
  6. Step 6: Final answer
    x = 31,984.46

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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.