Home / 30,449.24-42,004.14-20,366.36

Finding the Fourth Proportional to 30,449.24, 42,004.14 and 20,366.36

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Solution

The fourth proportional to 30,449.24, 42,004.14 and 20,366.36 is: 28,095.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.24 : 42,004.14 = 20,366.36 : x
  2. Step 2: Convert to fraction form
    30,449.24/42,004.14 = 20,366.36/x
  3. Step 3: Cross multiply
    30,449.24x = 42,004.14 × 20,366.36
  4. Step 4: Simplify right side
    30,449.24x = 855,471,436.73
  5. Step 5: Solve for x
    x = 855,471,436.73/30,449.24
  6. Step 6: Final answer
    x = 28,095.00

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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.