Home / 30,281.82-45,424.32-9,220.24

Finding the Fourth Proportional to 30,281.82, 45,424.32 and 9,220.24

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Solution

The fourth proportional to 30,281.82, 45,424.32 and 9,220.24 is: 13,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.82 : 45,424.32 = 9,220.24 : x
  2. Step 2: Convert to fraction form
    30,281.82/45,424.32 = 9,220.24/x
  3. Step 3: Cross multiply
    30,281.82x = 45,424.32 × 9,220.24
  4. Step 4: Simplify right side
    30,281.82x = 418,823,132.24
  5. Step 5: Solve for x
    x = 418,823,132.24/30,281.82
  6. Step 6: Final answer
    x = 13,830.84

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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.