Home / 20,499.81-30,750.52-5,710.02

Finding the Fourth Proportional to 20,499.81, 30,750.52 and 5,710.02

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Solution

The fourth proportional to 20,499.81, 30,750.52 and 5,710.02 is: 8,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.81 : 30,750.52 = 5,710.02 : x
  2. Step 2: Convert to fraction form
    20,499.81/30,750.52 = 5,710.02/x
  3. Step 3: Cross multiply
    20,499.81x = 30,750.52 × 5,710.02
  4. Step 4: Simplify right side
    20,499.81x = 175,586,014.47
  5. Step 5: Solve for x
    x = 175,586,014.47/20,499.81
  6. Step 6: Final answer
    x = 8,565.25

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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.