Home / 19,719.08-29,578.70-4,928.02

Finding the Fourth Proportional to 19,719.08, 29,578.70 and 4,928.02

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Solution

The fourth proportional to 19,719.08, 29,578.70 and 4,928.02 is: 7,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.08 : 29,578.70 = 4,928.02 : x
  2. Step 2: Convert to fraction form
    19,719.08/29,578.70 = 4,928.02/x
  3. Step 3: Cross multiply
    19,719.08x = 29,578.70 × 4,928.02
  4. Step 4: Simplify right side
    19,719.08x = 145,764,363.55
  5. Step 5: Solve for x
    x = 145,764,363.55/19,719.08
  6. Step 6: Final answer
    x = 7,392.05

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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.