Home / 19,621.58-29,428.25-6,470.87

Finding the Fourth Proportional to 19,621.58, 29,428.25 and 6,470.87

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Solution

The fourth proportional to 19,621.58, 29,428.25 and 6,470.87 is: 9,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.58 : 29,428.25 = 6,470.87 : x
  2. Step 2: Convert to fraction form
    19,621.58/29,428.25 = 6,470.87/x
  3. Step 3: Cross multiply
    19,621.58x = 29,428.25 × 6,470.87
  4. Step 4: Simplify right side
    19,621.58x = 190,426,200.58
  5. Step 5: Solve for x
    x = 190,426,200.58/19,621.58
  6. Step 6: Final answer
    x = 9,704.94

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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.