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Finding the Fourth Proportional to 27,019.20, 37,739.40 and 27,019.20

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Solution

The fourth proportional to 27,019.20, 37,739.40 and 27,019.20 is: 37,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,019.20 : 37,739.40 = 27,019.20 : x
  2. Step 2: Convert to fraction form
    27,019.20/37,739.40 = 27,019.20/x
  3. Step 3: Cross multiply
    27,019.20x = 37,739.40 × 27,019.20
  4. Step 4: Simplify right side
    27,019.20x = 1,019,688,396.48
  5. Step 5: Solve for x
    x = 1,019,688,396.48/27,019.20
  6. Step 6: Final answer
    x = 37,739.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.