Home / 39,671.05-54,746.94-21,766.00

Finding the Fourth Proportional to 39,671.05, 54,746.94 and 21,766.00

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Solution

The fourth proportional to 39,671.05, 54,746.94 and 21,766.00 is: 30,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,671.05 : 54,746.94 = 21,766.00 : x
  2. Step 2: Convert to fraction form
    39,671.05/54,746.94 = 21,766.00/x
  3. Step 3: Cross multiply
    39,671.05x = 54,746.94 × 21,766.00
  4. Step 4: Simplify right side
    39,671.05x = 1,191,621,821.01
  5. Step 5: Solve for x
    x = 1,191,621,821.01/39,671.05
  6. Step 6: Final answer
    x = 30,037.57

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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.