Home / 19,768.28-29,650.24-4,977.20

Finding the Fourth Proportional to 19,768.28, 29,650.24 and 4,977.20

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Solution

The fourth proportional to 19,768.28, 29,650.24 and 4,977.20 is: 7,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.28 : 29,650.24 = 4,977.20 : x
  2. Step 2: Convert to fraction form
    19,768.28/29,650.24 = 4,977.20/x
  3. Step 3: Cross multiply
    19,768.28x = 29,650.24 × 4,977.20
  4. Step 4: Simplify right side
    19,768.28x = 147,575,088.09
  5. Step 5: Solve for x
    x = 147,575,088.09/19,768.28
  6. Step 6: Final answer
    x = 7,465.25

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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.