Home / 19,319.40-26,626.82-15,942.28

Finding the Fourth Proportional to 19,319.40, 26,626.82 and 15,942.28

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Solution

The fourth proportional to 19,319.40, 26,626.82 and 15,942.28 is: 21,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.40 : 26,626.82 = 15,942.28 : x
  2. Step 2: Convert to fraction form
    19,319.40/26,626.82 = 15,942.28/x
  3. Step 3: Cross multiply
    19,319.40x = 26,626.82 × 15,942.28
  4. Step 4: Simplify right side
    19,319.40x = 424,492,219.95
  5. Step 5: Solve for x
    x = 424,492,219.95/19,319.40
  6. Step 6: Final answer
    x = 21,972.33

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Similar ratio
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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.