Home / 22,051.51-30,431.29-11,980.02

Finding the Fourth Proportional to 22,051.51, 30,431.29 and 11,980.02

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Solution

The fourth proportional to 22,051.51, 30,431.29 and 11,980.02 is: 16,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.51 : 30,431.29 = 11,980.02 : x
  2. Step 2: Convert to fraction form
    22,051.51/30,431.29 = 11,980.02/x
  3. Step 3: Cross multiply
    22,051.51x = 30,431.29 × 11,980.02
  4. Step 4: Simplify right side
    22,051.51x = 364,567,462.83
  5. Step 5: Solve for x
    x = 364,567,462.83/22,051.51
  6. Step 6: Final answer
    x = 16,532.54

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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.