Home / 35,105.86-48,432.50-21,653.76

Finding the Fourth Proportional to 35,105.86, 48,432.50 and 21,653.76

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Solution

The fourth proportional to 35,105.86, 48,432.50 and 21,653.76 is: 29,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,105.86 : 48,432.50 = 21,653.76 : x
  2. Step 2: Convert to fraction form
    35,105.86/48,432.50 = 21,653.76/x
  3. Step 3: Cross multiply
    35,105.86x = 48,432.50 × 21,653.76
  4. Step 4: Simplify right side
    35,105.86x = 1,048,745,731.20
  5. Step 5: Solve for x
    x = 1,048,745,731.20/35,105.86
  6. Step 6: Final answer
    x = 29,873.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.