Home / 30,680.69-42,343.09-17,252.51

Finding the Fourth Proportional to 30,680.69, 42,343.09 and 17,252.51

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Solution

The fourth proportional to 30,680.69, 42,343.09 and 17,252.51 is: 23,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.69 : 42,343.09 = 17,252.51 : x
  2. Step 2: Convert to fraction form
    30,680.69/42,343.09 = 17,252.51/x
  3. Step 3: Cross multiply
    30,680.69x = 42,343.09 × 17,252.51
  4. Step 4: Simplify right side
    30,680.69x = 730,524,328.81
  5. Step 5: Solve for x
    x = 730,524,328.81/30,680.69
  6. Step 6: Final answer
    x = 23,810.56

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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.