Home / 31,840.02-47,751.66-12,107.88

Finding the Fourth Proportional to 31,840.02, 47,751.66 and 12,107.88

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Solution

The fourth proportional to 31,840.02, 47,751.66 and 12,107.88 is: 18,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.02 : 47,751.66 = 12,107.88 : x
  2. Step 2: Convert to fraction form
    31,840.02/47,751.66 = 12,107.88/x
  3. Step 3: Cross multiply
    31,840.02x = 47,751.66 × 12,107.88
  4. Step 4: Simplify right side
    31,840.02x = 578,171,369.08
  5. Step 5: Solve for x
    x = 578,171,369.08/31,840.02
  6. Step 6: Final answer
    x = 18,158.64

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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.