Home / 36,077.40-49,785.36-20,969.34

Finding the Fourth Proportional to 36,077.40, 49,785.36 and 20,969.34

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Solution

The fourth proportional to 36,077.40, 49,785.36 and 20,969.34 is: 28,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,077.40 : 49,785.36 = 20,969.34 : x
  2. Step 2: Convert to fraction form
    36,077.40/49,785.36 = 20,969.34/x
  3. Step 3: Cross multiply
    36,077.40x = 49,785.36 × 20,969.34
  4. Step 4: Simplify right side
    36,077.40x = 1,043,966,140.86
  5. Step 5: Solve for x
    x = 1,043,966,140.86/36,077.40
  6. Step 6: Final answer
    x = 28,936.85

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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.