Home / 19,647.90-29,471.92-10,290.68

Finding the Fourth Proportional to 19,647.90, 29,471.92 and 10,290.68

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Solution

The fourth proportional to 19,647.90, 29,471.92 and 10,290.68 is: 15,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.90 : 29,471.92 = 10,290.68 : x
  2. Step 2: Convert to fraction form
    19,647.90/29,471.92 = 10,290.68/x
  3. Step 3: Cross multiply
    19,647.90x = 29,471.92 × 10,290.68
  4. Step 4: Simplify right side
    19,647.90x = 303,286,097.71
  5. Step 5: Solve for x
    x = 303,286,097.71/19,647.90
  6. Step 6: Final answer
    x = 15,436.06

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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.