Home / 19,181.13-28,771.76-5,330.13

Finding the Fourth Proportional to 19,181.13, 28,771.76 and 5,330.13

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Solution

The fourth proportional to 19,181.13, 28,771.76 and 5,330.13 is: 7,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.13 : 28,771.76 = 5,330.13 : x
  2. Step 2: Convert to fraction form
    19,181.13/28,771.76 = 5,330.13/x
  3. Step 3: Cross multiply
    19,181.13x = 28,771.76 × 5,330.13
  4. Step 4: Simplify right side
    19,181.13x = 153,357,221.13
  5. Step 5: Solve for x
    x = 153,357,221.13/19,181.13
  6. Step 6: Final answer
    x = 7,995.21

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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.