Home / 39,823.22-54,955.67-21,918.07

Finding the Fourth Proportional to 39,823.22, 54,955.67 and 21,918.07

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Solution

The fourth proportional to 39,823.22, 54,955.67 and 21,918.07 is: 30,246.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,823.22 : 54,955.67 = 21,918.07 : x
  2. Step 2: Convert to fraction form
    39,823.22/54,955.67 = 21,918.07/x
  3. Step 3: Cross multiply
    39,823.22x = 54,955.67 × 21,918.07
  4. Step 4: Simplify right side
    39,823.22x = 1,204,522,026.50
  5. Step 5: Solve for x
    x = 1,204,522,026.50/39,823.22
  6. Step 6: Final answer
    x = 30,246.73

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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.