Home / 31,503.11-47,274.44-12,783.23

Finding the Fourth Proportional to 31,503.11, 47,274.44 and 12,783.23

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Solution

The fourth proportional to 31,503.11, 47,274.44 and 12,783.23 is: 19,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.11 : 47,274.44 = 12,783.23 : x
  2. Step 2: Convert to fraction form
    31,503.11/47,274.44 = 12,783.23/x
  3. Step 3: Cross multiply
    31,503.11x = 47,274.44 × 12,783.23
  4. Step 4: Simplify right side
    31,503.11x = 604,320,039.64
  5. Step 5: Solve for x
    x = 604,320,039.64/31,503.11
  6. Step 6: Final answer
    x = 19,182.87

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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.