Home / 19,181.35-28,771.75-5,330.35

Finding the Fourth Proportional to 19,181.35, 28,771.75 and 5,330.35

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Solution

The fourth proportional to 19,181.35, 28,771.75 and 5,330.35 is: 7,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.35 : 28,771.75 = 5,330.35 : x
  2. Step 2: Convert to fraction form
    19,181.35/28,771.75 = 5,330.35/x
  3. Step 3: Cross multiply
    19,181.35x = 28,771.75 × 5,330.35
  4. Step 4: Simplify right side
    19,181.35x = 153,363,497.61
  5. Step 5: Solve for x
    x = 153,363,497.61/19,181.35
  6. Step 6: Final answer
    x = 7,995.45

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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.