Home / 39,823.65-54,955.60-21,674.75

Finding the Fourth Proportional to 39,823.65, 54,955.60 and 21,674.75

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Solution

The fourth proportional to 39,823.65, 54,955.60 and 21,674.75 is: 29,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,823.65 : 54,955.60 = 21,674.75 : x
  2. Step 2: Convert to fraction form
    39,823.65/54,955.60 = 21,674.75/x
  3. Step 3: Cross multiply
    39,823.65x = 54,955.60 × 21,674.75
  4. Step 4: Simplify right side
    39,823.65x = 1,191,148,562.14
  5. Step 5: Solve for x
    x = 1,191,148,562.14/39,823.65
  6. Step 6: Final answer
    x = 29,910.58

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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.