Home / 19,045.55-28,558.13-9,679.79

Finding the Fourth Proportional to 19,045.55, 28,558.13 and 9,679.79

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Solution

The fourth proportional to 19,045.55, 28,558.13 and 9,679.79 is: 14,514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.55 : 28,558.13 = 9,679.79 : x
  2. Step 2: Convert to fraction form
    19,045.55/28,558.13 = 9,679.79/x
  3. Step 3: Cross multiply
    19,045.55x = 28,558.13 × 9,679.79
  4. Step 4: Simplify right side
    19,045.55x = 276,436,510.00
  5. Step 5: Solve for x
    x = 276,436,510.00/19,045.55
  6. Step 6: Final answer
    x = 14,514.50

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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.