Home / 30,125.36-45,181.62-19,017.20

Finding the Fourth Proportional to 30,125.36, 45,181.62 and 19,017.20

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Solution

The fourth proportional to 30,125.36, 45,181.62 and 19,017.20 is: 28,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.36 : 45,181.62 = 19,017.20 : x
  2. Step 2: Convert to fraction form
    30,125.36/45,181.62 = 19,017.20/x
  3. Step 3: Cross multiply
    30,125.36x = 45,181.62 × 19,017.20
  4. Step 4: Simplify right side
    30,125.36x = 859,227,903.86
  5. Step 5: Solve for x
    x = 859,227,903.86/30,125.36
  6. Step 6: Final answer
    x = 28,521.75

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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.