Home / 19,020.93-28,522.73-7,920.99

Finding the Fourth Proportional to 19,020.93, 28,522.73 and 7,920.99

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Solution

The fourth proportional to 19,020.93, 28,522.73 and 7,920.99 is: 11,877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.93 : 28,522.73 = 7,920.99 : x
  2. Step 2: Convert to fraction form
    19,020.93/28,522.73 = 7,920.99/x
  3. Step 3: Cross multiply
    19,020.93x = 28,522.73 × 7,920.99
  4. Step 4: Simplify right side
    19,020.93x = 225,928,278.91
  5. Step 5: Solve for x
    x = 225,928,278.91/19,020.93
  6. Step 6: Final answer
    x = 11,877.88

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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.