Home / 30,679.41-42,336.63-17,251.23

Finding the Fourth Proportional to 30,679.41, 42,336.63 and 17,251.23

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Solution

The fourth proportional to 30,679.41, 42,336.63 and 17,251.23 is: 23,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,679.41 : 42,336.63 = 17,251.23 : x
  2. Step 2: Convert to fraction form
    30,679.41/42,336.63 = 17,251.23/x
  3. Step 3: Cross multiply
    30,679.41x = 42,336.63 × 17,251.23
  4. Step 4: Simplify right side
    30,679.41x = 730,358,941.55
  5. Step 5: Solve for x
    x = 730,358,941.55/30,679.41
  6. Step 6: Final answer
    x = 23,806.16

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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.