Home / 19,869.60-29,804.33-5,078.49

Finding the Fourth Proportional to 19,869.60, 29,804.33 and 5,078.49

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Solution

The fourth proportional to 19,869.60, 29,804.33 and 5,078.49 is: 7,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.60 : 29,804.33 = 5,078.49 : x
  2. Step 2: Convert to fraction form
    19,869.60/29,804.33 = 5,078.49/x
  3. Step 3: Cross multiply
    19,869.60x = 29,804.33 × 5,078.49
  4. Step 4: Simplify right side
    19,869.60x = 151,360,966.47
  5. Step 5: Solve for x
    x = 151,360,966.47/19,869.60
  6. Step 6: Final answer
    x = 7,617.72

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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.