Home / 30,831.54-46,161.39-19,710.78

Finding the Fourth Proportional to 30,831.54, 46,161.39 and 19,710.78

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Solution

The fourth proportional to 30,831.54, 46,161.39 and 19,710.78 is: 29,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.54 : 46,161.39 = 19,710.78 : x
  2. Step 2: Convert to fraction form
    30,831.54/46,161.39 = 19,710.78/x
  3. Step 3: Cross multiply
    30,831.54x = 46,161.39 × 19,710.78
  4. Step 4: Simplify right side
    30,831.54x = 909,877,002.78
  5. Step 5: Solve for x
    x = 909,877,002.78/30,831.54
  6. Step 6: Final answer
    x = 29,511.24

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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.