Home / 47,484.48-71,188.32-19,803.20

Finding the Fourth Proportional to 47,484.48, 71,188.32 and 19,803.20

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Solution

The fourth proportional to 47,484.48, 71,188.32 and 19,803.20 is: 29,688.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,484.48 : 71,188.32 = 19,803.20 : x
  2. Step 2: Convert to fraction form
    47,484.48/71,188.32 = 19,803.20/x
  3. Step 3: Cross multiply
    47,484.48x = 71,188.32 × 19,803.20
  4. Step 4: Simplify right side
    47,484.48x = 1,409,756,538.62
  5. Step 5: Solve for x
    x = 1,409,756,538.62/47,484.48
  6. Step 6: Final answer
    x = 29,688.79

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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.