Home / 30,711.36-46,033.20-11,987.94

Finding the Fourth Proportional to 30,711.36, 46,033.20 and 11,987.94

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Solution

The fourth proportional to 30,711.36, 46,033.20 and 11,987.94 is: 17,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.36 : 46,033.20 = 11,987.94 : x
  2. Step 2: Convert to fraction form
    30,711.36/46,033.20 = 11,987.94/x
  3. Step 3: Cross multiply
    30,711.36x = 46,033.20 × 11,987.94
  4. Step 4: Simplify right side
    30,711.36x = 551,843,239.61
  5. Step 5: Solve for x
    x = 551,843,239.61/30,711.36
  6. Step 6: Final answer
    x = 17,968.70

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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.