Home / 16,657.81-22,997.96-15,858.56

Finding the Fourth Proportional to 16,657.81, 22,997.96 and 15,858.56

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Solution

The fourth proportional to 16,657.81, 22,997.96 and 15,858.56 is: 21,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,657.81 : 22,997.96 = 15,858.56 : x
  2. Step 2: Convert to fraction form
    16,657.81/22,997.96 = 15,858.56/x
  3. Step 3: Cross multiply
    16,657.81x = 22,997.96 × 15,858.56
  4. Step 4: Simplify right side
    16,657.81x = 364,714,528.54
  5. Step 5: Solve for x
    x = 364,714,528.54/16,657.81
  6. Step 6: Final answer
    x = 21,894.51

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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.