Home / 39,022.10-53,850.08-21,116.70

Finding the Fourth Proportional to 39,022.10, 53,850.08 and 21,116.70

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Solution

The fourth proportional to 39,022.10, 53,850.08 and 21,116.70 is: 29,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022.10 : 53,850.08 = 21,116.70 : x
  2. Step 2: Convert to fraction form
    39,022.10/53,850.08 = 21,116.70/x
  3. Step 3: Cross multiply
    39,022.10x = 53,850.08 × 21,116.70
  4. Step 4: Simplify right side
    39,022.10x = 1,137,135,878.75
  5. Step 5: Solve for x
    x = 1,137,135,878.75/39,022.10
  6. Step 6: Final answer
    x = 29,140.82

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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.