Home / 30,908.27-42,635.13-19,730.27

Finding the Fourth Proportional to 30,908.27, 42,635.13 and 19,730.27

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Solution

The fourth proportional to 30,908.27, 42,635.13 and 19,730.27 is: 27,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.27 : 42,635.13 = 19,730.27 : x
  2. Step 2: Convert to fraction form
    30,908.27/42,635.13 = 19,730.27/x
  3. Step 3: Cross multiply
    30,908.27x = 42,635.13 × 19,730.27
  4. Step 4: Simplify right side
    30,908.27x = 841,202,732.97
  5. Step 5: Solve for x
    x = 841,202,732.97/30,908.27
  6. Step 6: Final answer
    x = 27,216.10

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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.