Home / 30,342.70-45,539.56-15,565.86

Finding the Fourth Proportional to 30,342.70, 45,539.56 and 15,565.86

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Solution

The fourth proportional to 30,342.70, 45,539.56 and 15,565.86 is: 23,361.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.70 : 45,539.56 = 15,565.86 : x
  2. Step 2: Convert to fraction form
    30,342.70/45,539.56 = 15,565.86/x
  3. Step 3: Cross multiply
    30,342.70x = 45,539.56 × 15,565.86
  4. Step 4: Simplify right side
    30,342.70x = 708,862,415.42
  5. Step 5: Solve for x
    x = 708,862,415.42/30,342.70
  6. Step 6: Final answer
    x = 23,361.88

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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.