Home / 47,735.84-71,598.15-12,678.20

Finding the Fourth Proportional to 47,735.84, 71,598.15 and 12,678.20

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Solution

The fourth proportional to 47,735.84, 71,598.15 and 12,678.20 is: 19,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,735.84 : 71,598.15 = 12,678.20 : x
  2. Step 2: Convert to fraction form
    47,735.84/71,598.15 = 12,678.20/x
  3. Step 3: Cross multiply
    47,735.84x = 71,598.15 × 12,678.20
  4. Step 4: Simplify right side
    47,735.84x = 907,735,665.33
  5. Step 5: Solve for x
    x = 907,735,665.33/47,735.84
  6. Step 6: Final answer
    x = 19,015.81

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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.