Home / 19,675.48-29,513.04-7,985.92

Finding the Fourth Proportional to 19,675.48, 29,513.04 and 7,985.92

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Solution

The fourth proportional to 19,675.48, 29,513.04 and 7,985.92 is: 11,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.48 : 29,513.04 = 7,985.92 : x
  2. Step 2: Convert to fraction form
    19,675.48/29,513.04 = 7,985.92/x
  3. Step 3: Cross multiply
    19,675.48x = 29,513.04 × 7,985.92
  4. Step 4: Simplify right side
    19,675.48x = 235,688,776.40
  5. Step 5: Solve for x
    x = 235,688,776.40/19,675.48
  6. Step 6: Final answer
    x = 11,978.81

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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.