Home / 57,943.82-86,954.68-20,503.74

Finding the Fourth Proportional to 57,943.82, 86,954.68 and 20,503.74

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Solution

The fourth proportional to 57,943.82, 86,954.68 and 20,503.74 is: 30,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,943.82 : 86,954.68 = 20,503.74 : x
  2. Step 2: Convert to fraction form
    57,943.82/86,954.68 = 20,503.74/x
  3. Step 3: Cross multiply
    57,943.82x = 86,954.68 × 20,503.74
  4. Step 4: Simplify right side
    57,943.82x = 1,782,896,150.50
  5. Step 5: Solve for x
    x = 1,782,896,150.50/57,943.82
  6. Step 6: Final answer
    x = 30,769.40

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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.