Home / 21,692.70-29,928.96-14,149.62

Finding the Fourth Proportional to 21,692.70, 29,928.96 and 14,149.62

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Solution

The fourth proportional to 21,692.70, 29,928.96 and 14,149.62 is: 19,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.70 : 29,928.96 = 14,149.62 : x
  2. Step 2: Convert to fraction form
    21,692.70/29,928.96 = 14,149.62/x
  3. Step 3: Cross multiply
    21,692.70x = 29,928.96 × 14,149.62
  4. Step 4: Simplify right side
    21,692.70x = 423,483,411.00
  5. Step 5: Solve for x
    x = 423,483,411.00/21,692.70
  6. Step 6: Final answer
    x = 19,521.93

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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.