Home / 19,518.80-29,297.40-9,669.20

Finding the Fourth Proportional to 19,518.80, 29,297.40 and 9,669.20

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Solution

The fourth proportional to 19,518.80, 29,297.40 and 9,669.20 is: 14,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.80 : 29,297.40 = 9,669.20 : x
  2. Step 2: Convert to fraction form
    19,518.80/29,297.40 = 9,669.20/x
  3. Step 3: Cross multiply
    19,518.80x = 29,297.40 × 9,669.20
  4. Step 4: Simplify right side
    19,518.80x = 283,282,420.08
  5. Step 5: Solve for x
    x = 283,282,420.08/19,518.80
  6. Step 6: Final answer
    x = 14,513.31

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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.