Home / 21,421.99-32,146.29-10,329.82

Finding the Fourth Proportional to 21,421.99, 32,146.29 and 10,329.82

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Solution

The fourth proportional to 21,421.99, 32,146.29 and 10,329.82 is: 15,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.99 : 32,146.29 = 10,329.82 : x
  2. Step 2: Convert to fraction form
    21,421.99/32,146.29 = 10,329.82/x
  3. Step 3: Cross multiply
    21,421.99x = 32,146.29 × 10,329.82
  4. Step 4: Simplify right side
    21,421.99x = 332,065,389.37
  5. Step 5: Solve for x
    x = 332,065,389.37/21,421.99
  6. Step 6: Final answer
    x = 15,501.15

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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.