Home / 57,966-86,923.68-20,513.63

Finding the Fourth Proportional to 57,966, 86,923.68 and 20,513.63

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Solution

The fourth proportional to 57,966, 86,923.68 and 20,513.63 is: 30,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,966 : 86,923.68 = 20,513.63 : x
  2. Step 2: Convert to fraction form
    57,966/86,923.68 = 20,513.63/x
  3. Step 3: Cross multiply
    57,966x = 86,923.68 × 20,513.63
  4. Step 4: Simplify right side
    57,966x = 1,783,119,775.14
  5. Step 5: Solve for x
    x = 1,783,119,775.14/57,966
  6. Step 6: Final answer
    x = 30,761.48

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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.