Home / 31,842.02-47,754.66-12,109.88

Finding the Fourth Proportional to 31,842.02, 47,754.66 and 12,109.88

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Solution

The fourth proportional to 31,842.02, 47,754.66 and 12,109.88 is: 18,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,842.02 : 47,754.66 = 12,109.88 : x
  2. Step 2: Convert to fraction form
    31,842.02/47,754.66 = 12,109.88/x
  3. Step 3: Cross multiply
    31,842.02x = 47,754.66 × 12,109.88
  4. Step 4: Simplify right side
    31,842.02x = 578,303,202.04
  5. Step 5: Solve for x
    x = 578,303,202.04/31,842.02
  6. Step 6: Final answer
    x = 18,161.64

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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.