Home / 19,484.64-29,176.40-13,553.28

Finding the Fourth Proportional to 19,484.64, 29,176.40 and 13,553.28

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Solution

The fourth proportional to 19,484.64, 29,176.40 and 13,553.28 is: 20,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.64 : 29,176.40 = 13,553.28 : x
  2. Step 2: Convert to fraction form
    19,484.64/29,176.40 = 13,553.28/x
  3. Step 3: Cross multiply
    19,484.64x = 29,176.40 × 13,553.28
  4. Step 4: Simplify right side
    19,484.64x = 395,435,918.59
  5. Step 5: Solve for x
    x = 395,435,918.59/19,484.64
  6. Step 6: Final answer
    x = 20,294.75

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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.