Home / 27,139.32-40,771.35-19,261.40

Finding the Fourth Proportional to 27,139.32, 40,771.35 and 19,261.40

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Solution

The fourth proportional to 27,139.32, 40,771.35 and 19,261.40 is: 28,936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.32 : 40,771.35 = 19,261.40 : x
  2. Step 2: Convert to fraction form
    27,139.32/40,771.35 = 19,261.40/x
  3. Step 3: Cross multiply
    27,139.32x = 40,771.35 × 19,261.40
  4. Step 4: Simplify right side
    27,139.32x = 785,313,077.03
  5. Step 5: Solve for x
    x = 785,313,077.03/27,139.32
  6. Step 6: Final answer
    x = 28,936.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.