Home / 31,387.83-47,069.40-11,392.59

Finding the Fourth Proportional to 31,387.83, 47,069.40 and 11,392.59

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Solution

The fourth proportional to 31,387.83, 47,069.40 and 11,392.59 is: 17,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.83 : 47,069.40 = 11,392.59 : x
  2. Step 2: Convert to fraction form
    31,387.83/47,069.40 = 11,392.59/x
  3. Step 3: Cross multiply
    31,387.83x = 47,069.40 × 11,392.59
  4. Step 4: Simplify right side
    31,387.83x = 536,242,375.75
  5. Step 5: Solve for x
    x = 536,242,375.75/31,387.83
  6. Step 6: Final answer
    x = 17,084.40

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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.