Home / 47,128.84-70,684.74-19,047.88

Finding the Fourth Proportional to 47,128.84, 70,684.74 and 19,047.88

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Solution

The fourth proportional to 47,128.84, 70,684.74 and 19,047.88 is: 28,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.84 : 70,684.74 = 19,047.88 : x
  2. Step 2: Convert to fraction form
    47,128.84/70,684.74 = 19,047.88/x
  3. Step 3: Cross multiply
    47,128.84x = 70,684.74 × 19,047.88
  4. Step 4: Simplify right side
    47,128.84x = 1,346,394,445.35
  5. Step 5: Solve for x
    x = 1,346,394,445.35/47,128.84
  6. Step 6: Final answer
    x = 28,568.38

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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.