Home / 47,761.84-65,917.40-28,899.12

Finding the Fourth Proportional to 47,761.84, 65,917.40 and 28,899.12

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Solution

The fourth proportional to 47,761.84, 65,917.40 and 28,899.12 is: 39,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,761.84 : 65,917.40 = 28,899.12 : x
  2. Step 2: Convert to fraction form
    47,761.84/65,917.40 = 28,899.12/x
  3. Step 3: Cross multiply
    47,761.84x = 65,917.40 × 28,899.12
  4. Step 4: Simplify right side
    47,761.84x = 1,904,954,852.69
  5. Step 5: Solve for x
    x = 1,904,954,852.69/47,761.84
  6. Step 6: Final answer
    x = 39,884.45

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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.