Home / 39,114.26-53,976.72-21,651.05

Finding the Fourth Proportional to 39,114.26, 53,976.72 and 21,651.05

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Solution

The fourth proportional to 39,114.26, 53,976.72 and 21,651.05 is: 29,877.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,114.26 : 53,976.72 = 21,651.05 : x
  2. Step 2: Convert to fraction form
    39,114.26/53,976.72 = 21,651.05/x
  3. Step 3: Cross multiply
    39,114.26x = 53,976.72 × 21,651.05
  4. Step 4: Simplify right side
    39,114.26x = 1,168,652,393.67
  5. Step 5: Solve for x
    x = 1,168,652,393.67/39,114.26
  6. Step 6: Final answer
    x = 29,877.92

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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.