Home / 19,120.84-28,670.06-5,789.88

Finding the Fourth Proportional to 19,120.84, 28,670.06 and 5,789.88

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Solution

The fourth proportional to 19,120.84, 28,670.06 and 5,789.88 is: 8,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.84 : 28,670.06 = 5,789.88 : x
  2. Step 2: Convert to fraction form
    19,120.84/28,670.06 = 5,789.88/x
  3. Step 3: Cross multiply
    19,120.84x = 28,670.06 × 5,789.88
  4. Step 4: Simplify right side
    19,120.84x = 165,996,206.99
  5. Step 5: Solve for x
    x = 165,996,206.99/19,120.84
  6. Step 6: Final answer
    x = 8,681.43

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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.