Home / 21,609.29-32,381.67-19,561.16

Finding the Fourth Proportional to 21,609.29, 32,381.67 and 19,561.16

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Solution

The fourth proportional to 21,609.29, 32,381.67 and 19,561.16 is: 29,312.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.29 : 32,381.67 = 19,561.16 : x
  2. Step 2: Convert to fraction form
    21,609.29/32,381.67 = 19,561.16/x
  3. Step 3: Cross multiply
    21,609.29x = 32,381.67 × 19,561.16
  4. Step 4: Simplify right side
    21,609.29x = 633,423,027.94
  5. Step 5: Solve for x
    x = 633,423,027.94/21,609.29
  6. Step 6: Final answer
    x = 29,312.53

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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.