Home / 19,487.55-29,231.40-5,447.49

Finding the Fourth Proportional to 19,487.55, 29,231.40 and 5,447.49

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Solution

The fourth proportional to 19,487.55, 29,231.40 and 5,447.49 is: 8,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.55 : 29,231.40 = 5,447.49 : x
  2. Step 2: Convert to fraction form
    19,487.55/29,231.40 = 5,447.49/x
  3. Step 3: Cross multiply
    19,487.55x = 29,231.40 × 5,447.49
  4. Step 4: Simplify right side
    19,487.55x = 159,237,731.95
  5. Step 5: Solve for x
    x = 159,237,731.95/19,487.55
  6. Step 6: Final answer
    x = 8,171.25

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1.5x scale

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.