Home / 22,443.36-30,971.52-13,012.80

Finding the Fourth Proportional to 22,443.36, 30,971.52 and 13,012.80

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Solution

The fourth proportional to 22,443.36, 30,971.52 and 13,012.80 is: 17,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,443.36 : 30,971.52 = 13,012.80 : x
  2. Step 2: Convert to fraction form
    22,443.36/30,971.52 = 13,012.80/x
  3. Step 3: Cross multiply
    22,443.36x = 30,971.52 × 13,012.80
  4. Step 4: Simplify right side
    22,443.36x = 403,026,195.46
  5. Step 5: Solve for x
    x = 403,026,195.46/22,443.36
  6. Step 6: Final answer
    x = 17,957.48

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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.