Home / 19,877.84-27,431.92-10,925.56

Finding the Fourth Proportional to 19,877.84, 27,431.92 and 10,925.56

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Solution

The fourth proportional to 19,877.84, 27,431.92 and 10,925.56 is: 15,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.84 : 27,431.92 = 10,925.56 : x
  2. Step 2: Convert to fraction form
    19,877.84/27,431.92 = 10,925.56/x
  3. Step 3: Cross multiply
    19,877.84x = 27,431.92 × 10,925.56
  4. Step 4: Simplify right side
    19,877.84x = 299,709,087.88
  5. Step 5: Solve for x
    x = 299,709,087.88/19,877.84
  6. Step 6: Final answer
    x = 15,077.55

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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.