Home / 47,374.74-71,065.62-13,639.50

Finding the Fourth Proportional to 47,374.74, 71,065.62 and 13,639.50

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Solution

The fourth proportional to 47,374.74, 71,065.62 and 13,639.50 is: 20,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,374.74 : 71,065.62 = 13,639.50 : x
  2. Step 2: Convert to fraction form
    47,374.74/71,065.62 = 13,639.50/x
  3. Step 3: Cross multiply
    47,374.74x = 71,065.62 × 13,639.50
  4. Step 4: Simplify right side
    47,374.74x = 969,299,523.99
  5. Step 5: Solve for x
    x = 969,299,523.99/47,374.74
  6. Step 6: Final answer
    x = 20,460.26

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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.