Home / 30,789.79-46,185.14-20,326.81

Finding the Fourth Proportional to 30,789.79, 46,185.14 and 20,326.81

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Solution

The fourth proportional to 30,789.79, 46,185.14 and 20,326.81 is: 30,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789.79 : 46,185.14 = 20,326.81 : x
  2. Step 2: Convert to fraction form
    30,789.79/46,185.14 = 20,326.81/x
  3. Step 3: Cross multiply
    30,789.79x = 46,185.14 × 20,326.81
  4. Step 4: Simplify right side
    30,789.79x = 938,796,565.60
  5. Step 5: Solve for x
    x = 938,796,565.60/30,789.79
  6. Step 6: Final answer
    x = 30,490.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.