Home / 22,188.16-30,606.96-15,816.16

Finding the Fourth Proportional to 22,188.16, 30,606.96 and 15,816.16

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Solution

The fourth proportional to 22,188.16, 30,606.96 and 15,816.16 is: 21,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.16 : 30,606.96 = 15,816.16 : x
  2. Step 2: Convert to fraction form
    22,188.16/30,606.96 = 15,816.16/x
  3. Step 3: Cross multiply
    22,188.16x = 30,606.96 × 15,816.16
  4. Step 4: Simplify right side
    22,188.16x = 484,084,576.47
  5. Step 5: Solve for x
    x = 484,084,576.47/22,188.16
  6. Step 6: Final answer
    x = 21,817.25

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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.