Home / 19,841.80-29,726.70-9,430.60

Finding the Fourth Proportional to 19,841.80, 29,726.70 and 9,430.60

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Solution

The fourth proportional to 19,841.80, 29,726.70 and 9,430.60 is: 14,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.80 : 29,726.70 = 9,430.60 : x
  2. Step 2: Convert to fraction form
    19,841.80/29,726.70 = 9,430.60/x
  3. Step 3: Cross multiply
    19,841.80x = 29,726.70 × 9,430.60
  4. Step 4: Simplify right side
    19,841.80x = 280,340,617.02
  5. Step 5: Solve for x
    x = 280,340,617.02/19,841.80
  6. Step 6: Final answer
    x = 14,128.79

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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.