Home / 30,731.09-42,408.27-17,302.03

Finding the Fourth Proportional to 30,731.09, 42,408.27 and 17,302.03

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Solution

The fourth proportional to 30,731.09, 42,408.27 and 17,302.03 is: 23,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731.09 : 42,408.27 = 17,302.03 : x
  2. Step 2: Convert to fraction form
    30,731.09/42,408.27 = 17,302.03/x
  3. Step 3: Cross multiply
    30,731.09x = 42,408.27 × 17,302.03
  4. Step 4: Simplify right side
    30,731.09x = 733,749,053.77
  5. Step 5: Solve for x
    x = 733,749,053.77/30,731.09
  6. Step 6: Final answer
    x = 23,876.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.