Home / 29,607.76-40,812.68-20,160.08

Finding the Fourth Proportional to 29,607.76, 40,812.68 and 20,160.08

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Solution

The fourth proportional to 29,607.76, 40,812.68 and 20,160.08 is: 27,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,607.76 : 40,812.68 = 20,160.08 : x
  2. Step 2: Convert to fraction form
    29,607.76/40,812.68 = 20,160.08/x
  3. Step 3: Cross multiply
    29,607.76x = 40,812.68 × 20,160.08
  4. Step 4: Simplify right side
    29,607.76x = 822,786,893.81
  5. Step 5: Solve for x
    x = 822,786,893.81/29,607.76
  6. Step 6: Final answer
    x = 27,789.57

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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.