Home / 47,759.84-65,914.64-28,897.12

Finding the Fourth Proportional to 47,759.84, 65,914.64 and 28,897.12

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Solution

The fourth proportional to 47,759.84, 65,914.64 and 28,897.12 is: 39,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,759.84 : 65,914.64 = 28,897.12 : x
  2. Step 2: Convert to fraction form
    47,759.84/65,914.64 = 28,897.12/x
  3. Step 3: Cross multiply
    47,759.84x = 65,914.64 × 28,897.12
  4. Step 4: Simplify right side
    47,759.84x = 1,904,743,261.84
  5. Step 5: Solve for x
    x = 1,904,743,261.84/47,759.84
  6. Step 6: Final answer
    x = 39,881.69

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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.