Home / 31,838.86-47,692.65-18,651.25

Finding the Fourth Proportional to 31,838.86, 47,692.65 and 18,651.25

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Solution

The fourth proportional to 31,838.86, 47,692.65 and 18,651.25 is: 27,938.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,838.86 : 47,692.65 = 18,651.25 : x
  2. Step 2: Convert to fraction form
    31,838.86/47,692.65 = 18,651.25/x
  3. Step 3: Cross multiply
    31,838.86x = 47,692.65 × 18,651.25
  4. Step 4: Simplify right side
    31,838.86x = 889,527,299.85
  5. Step 5: Solve for x
    x = 889,527,299.85/31,838.86
  6. Step 6: Final answer
    x = 27,938.42

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1.5x scale

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.