Home / 30,678.46-46,009.18-19,426.48

Finding the Fourth Proportional to 30,678.46, 46,009.18 and 19,426.48

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Solution

The fourth proportional to 30,678.46, 46,009.18 and 19,426.48 is: 29,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.46 : 46,009.18 = 19,426.48 : x
  2. Step 2: Convert to fraction form
    30,678.46/46,009.18 = 19,426.48/x
  3. Step 3: Cross multiply
    30,678.46x = 46,009.18 × 19,426.48
  4. Step 4: Simplify right side
    30,678.46x = 893,796,415.09
  5. Step 5: Solve for x
    x = 893,796,415.09/30,678.46
  6. Step 6: Final answer
    x = 29,134.33

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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.