Home / 21,520.04-29,707.38-14,450.36

Finding the Fourth Proportional to 21,520.04, 29,707.38 and 14,450.36

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Solution

The fourth proportional to 21,520.04, 29,707.38 and 14,450.36 is: 19,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.04 : 29,707.38 = 14,450.36 : x
  2. Step 2: Convert to fraction form
    21,520.04/29,707.38 = 14,450.36/x
  3. Step 3: Cross multiply
    21,520.04x = 29,707.38 × 14,450.36
  4. Step 4: Simplify right side
    21,520.04x = 429,282,335.66
  5. Step 5: Solve for x
    x = 429,282,335.66/21,520.04
  6. Step 6: Final answer
    x = 19,948.03

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Half scale
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Double scale
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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.