Home / 30,718.93-42,392.19-17,290.37

Finding the Fourth Proportional to 30,718.93, 42,392.19 and 17,290.37

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Solution

The fourth proportional to 30,718.93, 42,392.19 and 17,290.37 is: 23,860.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.93 : 42,392.19 = 17,290.37 : x
  2. Step 2: Convert to fraction form
    30,718.93/42,392.19 = 17,290.37/x
  3. Step 3: Cross multiply
    30,718.93x = 42,392.19 × 17,290.37
  4. Step 4: Simplify right side
    30,718.93x = 732,976,650.21
  5. Step 5: Solve for x
    x = 732,976,650.21/30,718.93
  6. Step 6: Final answer
    x = 23,860.75

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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.