Home / 30,443.20-45,741.60-19,355.20

Finding the Fourth Proportional to 30,443.20, 45,741.60 and 19,355.20

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Solution

The fourth proportional to 30,443.20, 45,741.60 and 19,355.20 is: 29,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.20 : 45,741.60 = 19,355.20 : x
  2. Step 2: Convert to fraction form
    30,443.20/45,741.60 = 19,355.20/x
  3. Step 3: Cross multiply
    30,443.20x = 45,741.60 × 19,355.20
  4. Step 4: Simplify right side
    30,443.20x = 885,337,816.32
  5. Step 5: Solve for x
    x = 885,337,816.32/30,443.20
  6. Step 6: Final answer
    x = 29,081.63

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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.