Home / 19,575.90-29,355.63-6,421.02

Finding the Fourth Proportional to 19,575.90, 29,355.63 and 6,421.02

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Solution

The fourth proportional to 19,575.90, 29,355.63 and 6,421.02 is: 9,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,575.90 : 29,355.63 = 6,421.02 : x
  2. Step 2: Convert to fraction form
    19,575.90/29,355.63 = 6,421.02/x
  3. Step 3: Cross multiply
    19,575.90x = 29,355.63 × 6,421.02
  4. Step 4: Simplify right side
    19,575.90x = 188,493,087.34
  5. Step 5: Solve for x
    x = 188,493,087.34/19,575.90
  6. Step 6: Final answer
    x = 9,628.83

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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.