Home / 31,692.74-47,539.06-12,725.91

Finding the Fourth Proportional to 31,692.74, 47,539.06 and 12,725.91

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Solution

The fourth proportional to 31,692.74, 47,539.06 and 12,725.91 is: 19,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.74 : 47,539.06 = 12,725.91 : x
  2. Step 2: Convert to fraction form
    31,692.74/47,539.06 = 12,725.91/x
  3. Step 3: Cross multiply
    31,692.74x = 47,539.06 × 12,725.91
  4. Step 4: Simplify right side
    31,692.74x = 604,977,735.42
  5. Step 5: Solve for x
    x = 604,977,735.42/31,692.74
  6. Step 6: Final answer
    x = 19,088.85

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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.