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Finding the Fourth Proportional to 34,157.40, 51,180.90 and 19,322.20

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Solution

The fourth proportional to 34,157.40, 51,180.90 and 19,322.20 is: 28,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,157.40 : 51,180.90 = 19,322.20 : x
  2. Step 2: Convert to fraction form
    34,157.40/51,180.90 = 19,322.20/x
  3. Step 3: Cross multiply
    34,157.40x = 51,180.90 × 19,322.20
  4. Step 4: Simplify right side
    34,157.40x = 988,927,585.98
  5. Step 5: Solve for x
    x = 988,927,585.98/34,157.40
  6. Step 6: Final answer
    x = 28,952.07

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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.