Home / 31,551.90-47,243.40-19,054.42

Finding the Fourth Proportional to 31,551.90, 47,243.40 and 19,054.42

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Solution

The fourth proportional to 31,551.90, 47,243.40 and 19,054.42 is: 28,530.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.90 : 47,243.40 = 19,054.42 : x
  2. Step 2: Convert to fraction form
    31,551.90/47,243.40 = 19,054.42/x
  3. Step 3: Cross multiply
    31,551.90x = 47,243.40 × 19,054.42
  4. Step 4: Simplify right side
    31,551.90x = 900,195,585.83
  5. Step 5: Solve for x
    x = 900,195,585.83/31,551.90
  6. Step 6: Final answer
    x = 28,530.63

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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.