Home / 19,878.14-27,431.51-10,925.45

Finding the Fourth Proportional to 19,878.14, 27,431.51 and 10,925.45

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Solution

The fourth proportional to 19,878.14, 27,431.51 and 10,925.45 is: 15,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.14 : 27,431.51 = 10,925.45 : x
  2. Step 2: Convert to fraction form
    19,878.14/27,431.51 = 10,925.45/x
  3. Step 3: Cross multiply
    19,878.14x = 27,431.51 × 10,925.45
  4. Step 4: Simplify right side
    19,878.14x = 299,701,481.09
  5. Step 5: Solve for x
    x = 299,701,481.09/19,878.14
  6. Step 6: Final answer
    x = 15,076.94

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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.