Home / 31,110.22-42,918.44-21,035.01

Finding the Fourth Proportional to 31,110.22, 42,918.44 and 21,035.01

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Solution

The fourth proportional to 31,110.22, 42,918.44 and 21,035.01 is: 29,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,110.22 : 42,918.44 = 21,035.01 : x
  2. Step 2: Convert to fraction form
    31,110.22/42,918.44 = 21,035.01/x
  3. Step 3: Cross multiply
    31,110.22x = 42,918.44 × 21,035.01
  4. Step 4: Simplify right side
    31,110.22x = 902,789,814.58
  5. Step 5: Solve for x
    x = 902,789,814.58/31,110.22
  6. Step 6: Final answer
    x = 29,019.08

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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.