Home / 30,720.92-42,394.95-17,292.37

Finding the Fourth Proportional to 30,720.92, 42,394.95 and 17,292.37

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Solution

The fourth proportional to 30,720.92, 42,394.95 and 17,292.37 is: 23,863.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.92 : 42,394.95 = 17,292.37 : x
  2. Step 2: Convert to fraction form
    30,720.92/42,394.95 = 17,292.37/x
  3. Step 3: Cross multiply
    30,720.92x = 42,394.95 × 17,292.37
  4. Step 4: Simplify right side
    30,720.92x = 733,109,161.53
  5. Step 5: Solve for x
    x = 733,109,161.53/30,720.92
  6. Step 6: Final answer
    x = 23,863.52

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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.