Home / 21,008.62-28,982.45-14,200.46

Finding the Fourth Proportional to 21,008.62, 28,982.45 and 14,200.46

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Solution

The fourth proportional to 21,008.62, 28,982.45 and 14,200.46 is: 19,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008.62 : 28,982.45 = 14,200.46 : x
  2. Step 2: Convert to fraction form
    21,008.62/28,982.45 = 14,200.46/x
  3. Step 3: Cross multiply
    21,008.62x = 28,982.45 × 14,200.46
  4. Step 4: Simplify right side
    21,008.62x = 411,564,121.93
  5. Step 5: Solve for x
    x = 411,564,121.93/21,008.62
  6. Step 6: Final answer
    x = 19,590.25

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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.