Home / 21,767.48-30,033.87-13,806.80

Finding the Fourth Proportional to 21,767.48, 30,033.87 and 13,806.80

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Solution

The fourth proportional to 21,767.48, 30,033.87 and 13,806.80 is: 19,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,767.48 : 30,033.87 = 13,806.80 : x
  2. Step 2: Convert to fraction form
    21,767.48/30,033.87 = 13,806.80/x
  3. Step 3: Cross multiply
    21,767.48x = 30,033.87 × 13,806.80
  4. Step 4: Simplify right side
    21,767.48x = 414,671,486.15
  5. Step 5: Solve for x
    x = 414,671,486.15/21,767.48
  6. Step 6: Final answer
    x = 19,050.05

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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.