Home / 25,138.76-34,692.90-13,808.84

Finding the Fourth Proportional to 25,138.76, 34,692.90 and 13,808.84

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Solution

The fourth proportional to 25,138.76, 34,692.90 and 13,808.84 is: 19,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.76 : 34,692.90 = 13,808.84 : x
  2. Step 2: Convert to fraction form
    25,138.76/34,692.90 = 13,808.84/x
  3. Step 3: Cross multiply
    25,138.76x = 34,692.90 × 13,808.84
  4. Step 4: Simplify right side
    25,138.76x = 479,068,705.24
  5. Step 5: Solve for x
    x = 479,068,705.24/25,138.76
  6. Step 6: Final answer
    x = 19,056.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.