Home / 21,418.36-32,113.83-10,302.91

Finding the Fourth Proportional to 21,418.36, 32,113.83 and 10,302.91

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Solution

The fourth proportional to 21,418.36, 32,113.83 and 10,302.91 is: 15,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.36 : 32,113.83 = 10,302.91 : x
  2. Step 2: Convert to fraction form
    21,418.36/32,113.83 = 10,302.91/x
  3. Step 3: Cross multiply
    21,418.36x = 32,113.83 × 10,302.91
  4. Step 4: Simplify right side
    21,418.36x = 330,865,900.25
  5. Step 5: Solve for x
    x = 330,865,900.25/21,418.36
  6. Step 6: Final answer
    x = 15,447.77

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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.