Home / 19,880.18-27,434.94-10,928.52

Finding the Fourth Proportional to 19,880.18, 27,434.94 and 10,928.52

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Solution

The fourth proportional to 19,880.18, 27,434.94 and 10,928.52 is: 15,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.18 : 27,434.94 = 10,928.52 : x
  2. Step 2: Convert to fraction form
    19,880.18/27,434.94 = 10,928.52/x
  3. Step 3: Cross multiply
    19,880.18x = 27,434.94 × 10,928.52
  4. Step 4: Simplify right side
    19,880.18x = 299,823,290.49
  5. Step 5: Solve for x
    x = 299,823,290.49/19,880.18
  6. Step 6: Final answer
    x = 15,081.52

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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.