Home / 19,954.71-29,929.62-5,162.40

Finding the Fourth Proportional to 19,954.71, 29,929.62 and 5,162.40

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Solution

The fourth proportional to 19,954.71, 29,929.62 and 5,162.40 is: 7,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.71 : 29,929.62 = 5,162.40 : x
  2. Step 2: Convert to fraction form
    19,954.71/29,929.62 = 5,162.40/x
  3. Step 3: Cross multiply
    19,954.71x = 29,929.62 × 5,162.40
  4. Step 4: Simplify right side
    19,954.71x = 154,508,670.29
  5. Step 5: Solve for x
    x = 154,508,670.29/19,954.71
  6. Step 6: Final answer
    x = 7,742.97

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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.