Home / 31,692.88-47,511.12-15,042.64

Finding the Fourth Proportional to 31,692.88, 47,511.12 and 15,042.64

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Solution

The fourth proportional to 31,692.88, 47,511.12 and 15,042.64 is: 22,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.88 : 47,511.12 = 15,042.64 : x
  2. Step 2: Convert to fraction form
    31,692.88/47,511.12 = 15,042.64/x
  3. Step 3: Cross multiply
    31,692.88x = 47,511.12 × 15,042.64
  4. Step 4: Simplify right side
    31,692.88x = 714,692,674.16
  5. Step 5: Solve for x
    x = 714,692,674.16/31,692.88
  6. Step 6: Final answer
    x = 22,550.58

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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.