Home / 57,983.82-87,014.70-20,543.76

Finding the Fourth Proportional to 57,983.82, 87,014.70 and 20,543.76

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Solution

The fourth proportional to 57,983.82, 87,014.70 and 20,543.76 is: 30,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,983.82 : 87,014.70 = 20,543.76 : x
  2. Step 2: Convert to fraction form
    57,983.82/87,014.70 = 20,543.76/x
  3. Step 3: Cross multiply
    57,983.82x = 87,014.70 × 20,543.76
  4. Step 4: Simplify right side
    57,983.82x = 1,787,609,113.27
  5. Step 5: Solve for x
    x = 1,787,609,113.27/57,983.82
  6. Step 6: Final answer
    x = 30,829.45

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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.