Home / 22,289.65-30,759.67-12,858.22

Finding the Fourth Proportional to 22,289.65, 30,759.67 and 12,858.22

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Solution

The fourth proportional to 22,289.65, 30,759.67 and 12,858.22 is: 17,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.65 : 30,759.67 = 12,858.22 : x
  2. Step 2: Convert to fraction form
    22,289.65/30,759.67 = 12,858.22/x
  3. Step 3: Cross multiply
    22,289.65x = 30,759.67 × 12,858.22
  4. Step 4: Simplify right side
    22,289.65x = 395,514,603.99
  5. Step 5: Solve for x
    x = 395,514,603.99/22,289.65
  6. Step 6: Final answer
    x = 17,744.32

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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.