Home / 30,090.27-45,110.07-18,972.48

Finding the Fourth Proportional to 30,090.27, 45,110.07 and 18,972.48

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Solution

The fourth proportional to 30,090.27, 45,110.07 and 18,972.48 is: 28,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.27 : 45,110.07 = 18,972.48 : x
  2. Step 2: Convert to fraction form
    30,090.27/45,110.07 = 18,972.48/x
  3. Step 3: Cross multiply
    30,090.27x = 45,110.07 × 18,972.48
  4. Step 4: Simplify right side
    30,090.27x = 855,849,900.87
  5. Step 5: Solve for x
    x = 855,849,900.87/30,090.27
  6. Step 6: Final answer
    x = 28,442.75

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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.