Home / 19,265.79-26,576.15-15,684.60

Finding the Fourth Proportional to 19,265.79, 26,576.15 and 15,684.60

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Solution

The fourth proportional to 19,265.79, 26,576.15 and 15,684.60 is: 21,636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,265.79 : 26,576.15 = 15,684.60 : x
  2. Step 2: Convert to fraction form
    19,265.79/26,576.15 = 15,684.60/x
  3. Step 3: Cross multiply
    19,265.79x = 26,576.15 × 15,684.60
  4. Step 4: Simplify right side
    19,265.79x = 416,836,203.87
  5. Step 5: Solve for x
    x = 416,836,203.87/19,265.79
  6. Step 6: Final answer
    x = 21,636.08

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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.