Home / 30,230.56-45,355.68-12,705.28

Finding the Fourth Proportional to 30,230.56, 45,355.68 and 12,705.28

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Solution

The fourth proportional to 30,230.56, 45,355.68 and 12,705.28 is: 19,062.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.56 : 45,355.68 = 12,705.28 : x
  2. Step 2: Convert to fraction form
    30,230.56/45,355.68 = 12,705.28/x
  3. Step 3: Cross multiply
    30,230.56x = 45,355.68 × 12,705.28
  4. Step 4: Simplify right side
    30,230.56x = 576,256,613.99
  5. Step 5: Solve for x
    x = 576,256,613.99/30,230.56
  6. Step 6: Final answer
    x = 19,062.06

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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.