Home / 21,376.96-29,502-11,946.40

Finding the Fourth Proportional to 21,376.96, 29,502 and 11,946.40

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Solution

The fourth proportional to 21,376.96, 29,502 and 11,946.40 is: 16,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.96 : 29,502 = 11,946.40 : x
  2. Step 2: Convert to fraction form
    21,376.96/29,502 = 11,946.40/x
  3. Step 3: Cross multiply
    21,376.96x = 29,502 × 11,946.40
  4. Step 4: Simplify right side
    21,376.96x = 352,442,692.80
  5. Step 5: Solve for x
    x = 352,442,692.80/21,376.96
  6. Step 6: Final answer
    x = 16,487.04

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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.