Home / 19,363.19-29,041.30-5,131.76

Finding the Fourth Proportional to 19,363.19, 29,041.30 and 5,131.76

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Solution

The fourth proportional to 19,363.19, 29,041.30 and 5,131.76 is: 7,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.19 : 29,041.30 = 5,131.76 : x
  2. Step 2: Convert to fraction form
    19,363.19/29,041.30 = 5,131.76/x
  3. Step 3: Cross multiply
    19,363.19x = 29,041.30 × 5,131.76
  4. Step 4: Simplify right side
    19,363.19x = 149,032,981.69
  5. Step 5: Solve for x
    x = 149,032,981.69/19,363.19
  6. Step 6: Final answer
    x = 7,696.72

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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.