Home / 31,836.55-47,756.40-12,116.63

Finding the Fourth Proportional to 31,836.55, 47,756.40 and 12,116.63

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Solution

The fourth proportional to 31,836.55, 47,756.40 and 12,116.63 is: 18,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.55 : 47,756.40 = 12,116.63 : x
  2. Step 2: Convert to fraction form
    31,836.55/47,756.40 = 12,116.63/x
  3. Step 3: Cross multiply
    31,836.55x = 47,756.40 × 12,116.63
  4. Step 4: Simplify right side
    31,836.55x = 578,646,628.93
  5. Step 5: Solve for x
    x = 578,646,628.93/31,836.55
  6. Step 6: Final answer
    x = 18,175.55

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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.