Home / 47,653.46-71,446.51-20,986.74

Finding the Fourth Proportional to 47,653.46, 71,446.51 and 20,986.74

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Solution

The fourth proportional to 47,653.46, 71,446.51 and 20,986.74 is: 31,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,653.46 : 71,446.51 = 20,986.74 : x
  2. Step 2: Convert to fraction form
    47,653.46/71,446.51 = 20,986.74/x
  3. Step 3: Cross multiply
    47,653.46x = 71,446.51 × 20,986.74
  4. Step 4: Simplify right side
    47,653.46x = 1,499,429,329.28
  5. Step 5: Solve for x
    x = 1,499,429,329.28/47,653.46
  6. Step 6: Final answer
    x = 31,465.28

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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.