Home / 31,563.98-47,346.03-12,830.79

Finding the Fourth Proportional to 31,563.98, 47,346.03 and 12,830.79

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Solution

The fourth proportional to 31,563.98, 47,346.03 and 12,830.79 is: 19,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.98 : 47,346.03 = 12,830.79 : x
  2. Step 2: Convert to fraction form
    31,563.98/47,346.03 = 12,830.79/x
  3. Step 3: Cross multiply
    31,563.98x = 47,346.03 × 12,830.79
  4. Step 4: Simplify right side
    31,563.98x = 607,486,968.26
  5. Step 5: Solve for x
    x = 607,486,968.26/31,563.98
  6. Step 6: Final answer
    x = 19,246.21

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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.