Home / 30,939.34-42,696.40-16,792.18

Finding the Fourth Proportional to 30,939.34, 42,696.40 and 16,792.18

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Solution

The fourth proportional to 30,939.34, 42,696.40 and 16,792.18 is: 23,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.34 : 42,696.40 = 16,792.18 : x
  2. Step 2: Convert to fraction form
    30,939.34/42,696.40 = 16,792.18/x
  3. Step 3: Cross multiply
    30,939.34x = 42,696.40 × 16,792.18
  4. Step 4: Simplify right side
    30,939.34x = 716,965,634.15
  5. Step 5: Solve for x
    x = 716,965,634.15/30,939.34
  6. Step 6: Final answer
    x = 23,173.27

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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.