Home / 47,030.99-70,490.87-20,680.61

Finding the Fourth Proportional to 47,030.99, 70,490.87 and 20,680.61

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Solution

The fourth proportional to 47,030.99, 70,490.87 and 20,680.61 is: 30,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,030.99 : 70,490.87 = 20,680.61 : x
  2. Step 2: Convert to fraction form
    47,030.99/70,490.87 = 20,680.61/x
  3. Step 3: Cross multiply
    47,030.99x = 70,490.87 × 20,680.61
  4. Step 4: Simplify right side
    47,030.99x = 1,457,794,087.63
  5. Step 5: Solve for x
    x = 1,457,794,087.63/47,030.99
  6. Step 6: Final answer
    x = 30,996.46

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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.