Home / 19,943.80-29,919.30-10,058.20

Finding the Fourth Proportional to 19,943.80, 29,919.30 and 10,058.20

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Solution

The fourth proportional to 19,943.80, 29,919.30 and 10,058.20 is: 15,089.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.80 : 29,919.30 = 10,058.20 : x
  2. Step 2: Convert to fraction form
    19,943.80/29,919.30 = 10,058.20/x
  3. Step 3: Cross multiply
    19,943.80x = 29,919.30 × 10,058.20
  4. Step 4: Simplify right side
    19,943.80x = 300,934,303.26
  5. Step 5: Solve for x
    x = 300,934,303.26/19,943.80
  6. Step 6: Final answer
    x = 15,089.12

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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.