Home / 19,777.38-29,666.03-4,987.46

Finding the Fourth Proportional to 19,777.38, 29,666.03 and 4,987.46

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Solution

The fourth proportional to 19,777.38, 29,666.03 and 4,987.46 is: 7,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.38 : 29,666.03 = 4,987.46 : x
  2. Step 2: Convert to fraction form
    19,777.38/29,666.03 = 4,987.46/x
  3. Step 3: Cross multiply
    19,777.38x = 29,666.03 × 4,987.46
  4. Step 4: Simplify right side
    19,777.38x = 147,957,964.72
  5. Step 5: Solve for x
    x = 147,957,964.72/19,777.38
  6. Step 6: Final answer
    x = 7,481.17

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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.