Home / 19,815.75-29,724.06-7,970.71

Finding the Fourth Proportional to 19,815.75, 29,724.06 and 7,970.71

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Solution

The fourth proportional to 19,815.75, 29,724.06 and 7,970.71 is: 11,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.75 : 29,724.06 = 7,970.71 : x
  2. Step 2: Convert to fraction form
    19,815.75/29,724.06 = 7,970.71/x
  3. Step 3: Cross multiply
    19,815.75x = 29,724.06 × 7,970.71
  4. Step 4: Simplify right side
    19,815.75x = 236,921,862.28
  5. Step 5: Solve for x
    x = 236,921,862.28/19,815.75
  6. Step 6: Final answer
    x = 11,956.24

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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.