Home / 30,963.00-42,713.31-18,208.07

Finding the Fourth Proportional to 30,963.00, 42,713.31 and 18,208.07

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Solution

The fourth proportional to 30,963.00, 42,713.31 and 18,208.07 is: 25,117.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963.00 : 42,713.31 = 18,208.07 : x
  2. Step 2: Convert to fraction form
    30,963.00/42,713.31 = 18,208.07/x
  3. Step 3: Cross multiply
    30,963.00x = 42,713.31 × 18,208.07
  4. Step 4: Simplify right side
    30,963.00x = 777,726,807.56
  5. Step 5: Solve for x
    x = 777,726,807.56/30,963.00
  6. Step 6: Final answer
    x = 25,117.94

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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.