Home / 21,257.32-29,362.62-16,190.68

Finding the Fourth Proportional to 21,257.32, 29,362.62 and 16,190.68

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Solution

The fourth proportional to 21,257.32, 29,362.62 and 16,190.68 is: 22,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.32 : 29,362.62 = 16,190.68 : x
  2. Step 2: Convert to fraction form
    21,257.32/29,362.62 = 16,190.68/x
  3. Step 3: Cross multiply
    21,257.32x = 29,362.62 × 16,190.68
  4. Step 4: Simplify right side
    21,257.32x = 475,400,784.38
  5. Step 5: Solve for x
    x = 475,400,784.38/21,257.32
  6. Step 6: Final answer
    x = 22,364.10

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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.