Home / 30,939.32-42,696.31-16,792.17

Finding the Fourth Proportional to 30,939.32, 42,696.31 and 16,792.17

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Solution

The fourth proportional to 30,939.32, 42,696.31 and 16,792.17 is: 23,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.32 : 42,696.31 = 16,792.17 : x
  2. Step 2: Convert to fraction form
    30,939.32/42,696.31 = 16,792.17/x
  3. Step 3: Cross multiply
    30,939.32x = 42,696.31 × 16,792.17
  4. Step 4: Simplify right side
    30,939.32x = 716,963,493.80
  5. Step 5: Solve for x
    x = 716,963,493.80/30,939.32
  6. Step 6: Final answer
    x = 23,173.21

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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.