Home / 58,311.05-87,445.11-20,860.97

Finding the Fourth Proportional to 58,311.05, 87,445.11 and 20,860.97

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Solution

The fourth proportional to 58,311.05, 87,445.11 and 20,860.97 is: 31,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,311.05 : 87,445.11 = 20,860.97 : x
  2. Step 2: Convert to fraction form
    58,311.05/87,445.11 = 20,860.97/x
  3. Step 3: Cross multiply
    58,311.05x = 87,445.11 × 20,860.97
  4. Step 4: Simplify right side
    58,311.05x = 1,824,189,816.36
  5. Step 5: Solve for x
    x = 1,824,189,816.36/58,311.05
  6. Step 6: Final answer
    x = 31,283.78

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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.