Home / 35,268.05-48,666.81-20,157.71

Finding the Fourth Proportional to 35,268.05, 48,666.81 and 20,157.71

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Solution

The fourth proportional to 35,268.05, 48,666.81 and 20,157.71 is: 27,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,268.05 : 48,666.81 = 20,157.71 : x
  2. Step 2: Convert to fraction form
    35,268.05/48,666.81 = 20,157.71/x
  3. Step 3: Cross multiply
    35,268.05x = 48,666.81 × 20,157.71
  4. Step 4: Simplify right side
    35,268.05x = 981,011,442.61
  5. Step 5: Solve for x
    x = 981,011,442.61/35,268.05
  6. Step 6: Final answer
    x = 27,815.87

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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.