Home / 30,606.31-42,240.83-17,178.30

Finding the Fourth Proportional to 30,606.31, 42,240.83 and 17,178.30

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Solution

The fourth proportional to 30,606.31, 42,240.83 and 17,178.30 is: 23,708.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,606.31 : 42,240.83 = 17,178.30 : x
  2. Step 2: Convert to fraction form
    30,606.31/42,240.83 = 17,178.30/x
  3. Step 3: Cross multiply
    30,606.31x = 42,240.83 × 17,178.30
  4. Step 4: Simplify right side
    30,606.31x = 725,625,577.17
  5. Step 5: Solve for x
    x = 725,625,577.17/30,606.31
  6. Step 6: Final answer
    x = 23,708.37

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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.