Home / 19,411.79-29,110.51-6,928.47

Finding the Fourth Proportional to 19,411.79, 29,110.51 and 6,928.47

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Solution

The fourth proportional to 19,411.79, 29,110.51 and 6,928.47 is: 10,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.79 : 29,110.51 = 6,928.47 : x
  2. Step 2: Convert to fraction form
    19,411.79/29,110.51 = 6,928.47/x
  3. Step 3: Cross multiply
    19,411.79x = 29,110.51 × 6,928.47
  4. Step 4: Simplify right side
    19,411.79x = 201,691,295.22
  5. Step 5: Solve for x
    x = 201,691,295.22/19,411.79
  6. Step 6: Final answer
    x = 10,390.14

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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.