Home / 30,235.65-45,361.64-10,515.30

Finding the Fourth Proportional to 30,235.65, 45,361.64 and 10,515.30

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Solution

The fourth proportional to 30,235.65, 45,361.64 and 10,515.30 is: 15,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.65 : 45,361.64 = 10,515.30 : x
  2. Step 2: Convert to fraction form
    30,235.65/45,361.64 = 10,515.30/x
  3. Step 3: Cross multiply
    30,235.65x = 45,361.64 × 10,515.30
  4. Step 4: Simplify right side
    30,235.65x = 476,991,253.09
  5. Step 5: Solve for x
    x = 476,991,253.09/30,235.65
  6. Step 6: Final answer
    x = 15,775.79

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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.