Home / 30,291.60-45,442.61-11,573.31

Finding the Fourth Proportional to 30,291.60, 45,442.61 and 11,573.31

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Solution

The fourth proportional to 30,291.60, 45,442.61 and 11,573.31 is: 17,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.60 : 45,442.61 = 11,573.31 : x
  2. Step 2: Convert to fraction form
    30,291.60/45,442.61 = 11,573.31/x
  3. Step 3: Cross multiply
    30,291.60x = 45,442.61 × 11,573.31
  4. Step 4: Simplify right side
    30,291.60x = 525,921,354.87
  5. Step 5: Solve for x
    x = 525,921,354.87/30,291.60
  6. Step 6: Final answer
    x = 17,361.95

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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.