Home / 47,311.02-70,965-19,222.78

Finding the Fourth Proportional to 47,311.02, 70,965 and 19,222.78

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Solution

The fourth proportional to 47,311.02, 70,965 and 19,222.78 is: 28,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,311.02 : 70,965 = 19,222.78 : x
  2. Step 2: Convert to fraction form
    47,311.02/70,965 = 19,222.78/x
  3. Step 3: Cross multiply
    47,311.02x = 70,965 × 19,222.78
  4. Step 4: Simplify right side
    47,311.02x = 1,364,144,582.70
  5. Step 5: Solve for x
    x = 1,364,144,582.70/47,311.02
  6. Step 6: Final answer
    x = 28,833.55

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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.