Home / 20,500.13-30,749.64-5,708.45

Finding the Fourth Proportional to 20,500.13, 30,749.64 and 5,708.45

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Solution

The fourth proportional to 20,500.13, 30,749.64 and 5,708.45 is: 8,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.13 : 30,749.64 = 5,708.45 : x
  2. Step 2: Convert to fraction form
    20,500.13/30,749.64 = 5,708.45/x
  3. Step 3: Cross multiply
    20,500.13x = 30,749.64 × 5,708.45
  4. Step 4: Simplify right side
    20,500.13x = 175,532,628.71
  5. Step 5: Solve for x
    x = 175,532,628.71/20,500.13
  6. Step 6: Final answer
    x = 8,562.52

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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.