Home / 19,575.90-29,368.86-6,428.37

Finding the Fourth Proportional to 19,575.90, 29,368.86 and 6,428.37

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Solution

The fourth proportional to 19,575.90, 29,368.86 and 6,428.37 is: 9,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,575.90 : 29,368.86 = 6,428.37 : x
  2. Step 2: Convert to fraction form
    19,575.90/29,368.86 = 6,428.37/x
  3. Step 3: Cross multiply
    19,575.90x = 29,368.86 × 6,428.37
  4. Step 4: Simplify right side
    19,575.90x = 188,793,898.56
  5. Step 5: Solve for x
    x = 188,793,898.56/19,575.90
  6. Step 6: Final answer
    x = 9,644.20

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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.