Home / 30,939.17-42,696.57-16,792.01

Finding the Fourth Proportional to 30,939.17, 42,696.57 and 16,792.01

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Solution

The fourth proportional to 30,939.17, 42,696.57 and 16,792.01 is: 23,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.17 : 42,696.57 = 16,792.01 : x
  2. Step 2: Convert to fraction form
    30,939.17/42,696.57 = 16,792.01/x
  3. Step 3: Cross multiply
    30,939.17x = 42,696.57 × 16,792.01
  4. Step 4: Simplify right side
    30,939.17x = 716,961,145.55
  5. Step 5: Solve for x
    x = 716,961,145.55/30,939.17
  6. Step 6: Final answer
    x = 23,173.25

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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.