Home / 21,958.02-30,301.86-11,886.36

Finding the Fourth Proportional to 21,958.02, 30,301.86 and 11,886.36

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Solution

The fourth proportional to 21,958.02, 30,301.86 and 11,886.36 is: 16,403.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.02 : 30,301.86 = 11,886.36 : x
  2. Step 2: Convert to fraction form
    21,958.02/30,301.86 = 11,886.36/x
  3. Step 3: Cross multiply
    21,958.02x = 30,301.86 × 11,886.36
  4. Step 4: Simplify right side
    21,958.02x = 360,178,816.63
  5. Step 5: Solve for x
    x = 360,178,816.63/21,958.02
  6. Step 6: Final answer
    x = 16,403.06

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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.