Home / 21,995.74-30,358.16-13,048.48

Finding the Fourth Proportional to 21,995.74, 30,358.16 and 13,048.48

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Solution

The fourth proportional to 21,995.74, 30,358.16 and 13,048.48 is: 18,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.74 : 30,358.16 = 13,048.48 : x
  2. Step 2: Convert to fraction form
    21,995.74/30,358.16 = 13,048.48/x
  3. Step 3: Cross multiply
    21,995.74x = 30,358.16 × 13,048.48
  4. Step 4: Simplify right side
    21,995.74x = 396,127,843.60
  5. Step 5: Solve for x
    x = 396,127,843.60/21,995.74
  6. Step 6: Final answer
    x = 18,009.30

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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.