Home / 19,327.61-28,985.04-7,475.90

Finding the Fourth Proportional to 19,327.61, 28,985.04 and 7,475.90

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Solution

The fourth proportional to 19,327.61, 28,985.04 and 7,475.90 is: 11,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,327.61 : 28,985.04 = 7,475.90 : x
  2. Step 2: Convert to fraction form
    19,327.61/28,985.04 = 7,475.90/x
  3. Step 3: Cross multiply
    19,327.61x = 28,985.04 × 7,475.90
  4. Step 4: Simplify right side
    19,327.61x = 216,689,115.61
  5. Step 5: Solve for x
    x = 216,689,115.61/19,327.61
  6. Step 6: Final answer
    x = 11,211.38

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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.