Home / 21,389.27-32,083.36-5,806.49

Finding the Fourth Proportional to 21,389.27, 32,083.36 and 5,806.49

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Solution

The fourth proportional to 21,389.27, 32,083.36 and 5,806.49 is: 8,709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.27 : 32,083.36 = 5,806.49 : x
  2. Step 2: Convert to fraction form
    21,389.27/32,083.36 = 5,806.49/x
  3. Step 3: Cross multiply
    21,389.27x = 32,083.36 × 5,806.49
  4. Step 4: Simplify right side
    21,389.27x = 186,291,709.01
  5. Step 5: Solve for x
    x = 186,291,709.01/21,389.27
  6. Step 6: Final answer
    x = 8,709.59

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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.