Home / 22,453.81-30,987.78-12,382.27

Finding the Fourth Proportional to 22,453.81, 30,987.78 and 12,382.27

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Solution

The fourth proportional to 22,453.81, 30,987.78 and 12,382.27 is: 17,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.81 : 30,987.78 = 12,382.27 : x
  2. Step 2: Convert to fraction form
    22,453.81/30,987.78 = 12,382.27/x
  3. Step 3: Cross multiply
    22,453.81x = 30,987.78 × 12,382.27
  4. Step 4: Simplify right side
    22,453.81x = 383,699,058.66
  5. Step 5: Solve for x
    x = 383,699,058.66/22,453.81
  6. Step 6: Final answer
    x = 17,088.37

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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.