Home / 19,628.33-27,098.15-15,142.55

Finding the Fourth Proportional to 19,628.33, 27,098.15 and 15,142.55

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Solution

The fourth proportional to 19,628.33, 27,098.15 and 15,142.55 is: 20,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.33 : 27,098.15 = 15,142.55 : x
  2. Step 2: Convert to fraction form
    19,628.33/27,098.15 = 15,142.55/x
  3. Step 3: Cross multiply
    19,628.33x = 27,098.15 × 15,142.55
  4. Step 4: Simplify right side
    19,628.33x = 410,334,880.08
  5. Step 5: Solve for x
    x = 410,334,880.08/19,628.33
  6. Step 6: Final answer
    x = 20,905.24

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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.