Home / 47,012.91-70,537.74-20,699.20

Finding the Fourth Proportional to 47,012.91, 70,537.74 and 20,699.20

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Solution

The fourth proportional to 47,012.91, 70,537.74 and 20,699.20 is: 31,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,012.91 : 70,537.74 = 20,699.20 : x
  2. Step 2: Convert to fraction form
    47,012.91/70,537.74 = 20,699.20/x
  3. Step 3: Cross multiply
    47,012.91x = 70,537.74 × 20,699.20
  4. Step 4: Simplify right side
    47,012.91x = 1,460,074,401.58
  5. Step 5: Solve for x
    x = 1,460,074,401.58/47,012.91
  6. Step 6: Final answer
    x = 31,056.88

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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.