Home / 19,609.80-29,421.90-7,924.20

Finding the Fourth Proportional to 19,609.80, 29,421.90 and 7,924.20

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Solution

The fourth proportional to 19,609.80, 29,421.90 and 7,924.20 is: 11,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.80 : 29,421.90 = 7,924.20 : x
  2. Step 2: Convert to fraction form
    19,609.80/29,421.90 = 7,924.20/x
  3. Step 3: Cross multiply
    19,609.80x = 29,421.90 × 7,924.20
  4. Step 4: Simplify right side
    19,609.80x = 233,145,019.98
  5. Step 5: Solve for x
    x = 233,145,019.98/19,609.80
  6. Step 6: Final answer
    x = 11,889.21

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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.