Home / 47,380.03-71,110.98-19,315.55

Finding the Fourth Proportional to 47,380.03, 71,110.98 and 19,315.55

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Solution

The fourth proportional to 47,380.03, 71,110.98 and 19,315.55 is: 28,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,380.03 : 71,110.98 = 19,315.55 : x
  2. Step 2: Convert to fraction form
    47,380.03/71,110.98 = 19,315.55/x
  3. Step 3: Cross multiply
    47,380.03x = 71,110.98 × 19,315.55
  4. Step 4: Simplify right side
    47,380.03x = 1,373,547,867.52
  5. Step 5: Solve for x
    x = 1,373,547,867.52/47,380.03
  6. Step 6: Final answer
    x = 28,990.02

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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.