Home / 30,639.24-45,958.89-9,579.39

Finding the Fourth Proportional to 30,639.24, 45,958.89 and 9,579.39

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Solution

The fourth proportional to 30,639.24, 45,958.89 and 9,579.39 is: 14,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,639.24 : 45,958.89 = 9,579.39 : x
  2. Step 2: Convert to fraction form
    30,639.24/45,958.89 = 9,579.39/x
  3. Step 3: Cross multiply
    30,639.24x = 45,958.89 × 9,579.39
  4. Step 4: Simplify right side
    30,639.24x = 440,258,075.25
  5. Step 5: Solve for x
    x = 440,258,075.25/30,639.24
  6. Step 6: Final answer
    x = 14,369.09

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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.