Home / 19,278.90-28,955.43-17,106.48

Finding the Fourth Proportional to 19,278.90, 28,955.43 and 17,106.48

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Solution

The fourth proportional to 19,278.90, 28,955.43 and 17,106.48 is: 25,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.90 : 28,955.43 = 17,106.48 : x
  2. Step 2: Convert to fraction form
    19,278.90/28,955.43 = 17,106.48/x
  3. Step 3: Cross multiply
    19,278.90x = 28,955.43 × 17,106.48
  4. Step 4: Simplify right side
    19,278.90x = 495,325,484.19
  5. Step 5: Solve for x
    x = 495,325,484.19/19,278.90
  6. Step 6: Final answer
    x = 25,692.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.