Home / 21,370.16-29,480.04-14,305.88

Finding the Fourth Proportional to 21,370.16, 29,480.04 and 14,305.88

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Solution

The fourth proportional to 21,370.16, 29,480.04 and 14,305.88 is: 19,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370.16 : 29,480.04 = 14,305.88 : x
  2. Step 2: Convert to fraction form
    21,370.16/29,480.04 = 14,305.88/x
  3. Step 3: Cross multiply
    21,370.16x = 29,480.04 × 14,305.88
  4. Step 4: Simplify right side
    21,370.16x = 421,737,914.64
  5. Step 5: Solve for x
    x = 421,737,914.64/21,370.16
  6. Step 6: Final answer
    x = 19,734.90

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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.