Home / 22,619.36-31,215.48-13,665.08

Finding the Fourth Proportional to 22,619.36, 31,215.48 and 13,665.08

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Solution

The fourth proportional to 22,619.36, 31,215.48 and 13,665.08 is: 18,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.36 : 31,215.48 = 13,665.08 : x
  2. Step 2: Convert to fraction form
    22,619.36/31,215.48 = 13,665.08/x
  3. Step 3: Cross multiply
    22,619.36x = 31,215.48 × 13,665.08
  4. Step 4: Simplify right side
    22,619.36x = 426,562,031.44
  5. Step 5: Solve for x
    x = 426,562,031.44/22,619.36
  6. Step 6: Final answer
    x = 18,858.27

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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.