Home / 30,680.66-42,338.75-17,068.64

Finding the Fourth Proportional to 30,680.66, 42,338.75 and 17,068.64

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Solution

The fourth proportional to 30,680.66, 42,338.75 and 17,068.64 is: 23,554.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.66 : 42,338.75 = 17,068.64 : x
  2. Step 2: Convert to fraction form
    30,680.66/42,338.75 = 17,068.64/x
  3. Step 3: Cross multiply
    30,680.66x = 42,338.75 × 17,068.64
  4. Step 4: Simplify right side
    30,680.66x = 722,664,881.80
  5. Step 5: Solve for x
    x = 722,664,881.80/30,680.66
  6. Step 6: Final answer
    x = 23,554.41

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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.