Home / 19,534.78-26,940.63-15,335.74

Finding the Fourth Proportional to 19,534.78, 26,940.63 and 15,335.74

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Solution

The fourth proportional to 19,534.78, 26,940.63 and 15,335.74 is: 21,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,534.78 : 26,940.63 = 15,335.74 : x
  2. Step 2: Convert to fraction form
    19,534.78/26,940.63 = 15,335.74/x
  3. Step 3: Cross multiply
    19,534.78x = 26,940.63 × 15,335.74
  4. Step 4: Simplify right side
    19,534.78x = 413,154,497.12
  5. Step 5: Solve for x
    x = 413,154,497.12/19,534.78
  6. Step 6: Final answer
    x = 21,149.69

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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.