Home / 19,853.44-29,780.16-15,474.20

Finding the Fourth Proportional to 19,853.44, 29,780.16 and 15,474.20

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Solution

The fourth proportional to 19,853.44, 29,780.16 and 15,474.20 is: 23,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.44 : 29,780.16 = 15,474.20 : x
  2. Step 2: Convert to fraction form
    19,853.44/29,780.16 = 15,474.20/x
  3. Step 3: Cross multiply
    19,853.44x = 29,780.16 × 15,474.20
  4. Step 4: Simplify right side
    19,853.44x = 460,824,151.87
  5. Step 5: Solve for x
    x = 460,824,151.87/19,853.44
  6. Step 6: Final answer
    x = 23,211.30

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1.5x scale

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.