Home / 19,769.48-29,653.16-4,978.38

Finding the Fourth Proportional to 19,769.48, 29,653.16 and 4,978.38

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Solution

The fourth proportional to 19,769.48, 29,653.16 and 4,978.38 is: 7,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.48 : 29,653.16 = 4,978.38 : x
  2. Step 2: Convert to fraction form
    19,769.48/29,653.16 = 4,978.38/x
  3. Step 3: Cross multiply
    19,769.48x = 29,653.16 × 4,978.38
  4. Step 4: Simplify right side
    19,769.48x = 147,624,698.68
  5. Step 5: Solve for x
    x = 147,624,698.68/19,769.48
  6. Step 6: Final answer
    x = 7,467.30

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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.