Home / 30,390.16-45,435.36-25,761.82

Finding the Fourth Proportional to 30,390.16, 45,435.36 and 25,761.82

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Solution

The fourth proportional to 30,390.16, 45,435.36 and 25,761.82 is: 38,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.16 : 45,435.36 = 25,761.82 : x
  2. Step 2: Convert to fraction form
    30,390.16/45,435.36 = 25,761.82/x
  3. Step 3: Cross multiply
    30,390.16x = 45,435.36 × 25,761.82
  4. Step 4: Simplify right side
    30,390.16x = 1,170,497,565.96
  5. Step 5: Solve for x
    x = 1,170,497,565.96/30,390.16
  6. Step 6: Final answer
    x = 38,515.68

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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.