Home / 30,309.72-45,435.41-15,525.60

Finding the Fourth Proportional to 30,309.72, 45,435.41 and 15,525.60

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Solution

The fourth proportional to 30,309.72, 45,435.41 and 15,525.60 is: 23,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309.72 : 45,435.41 = 15,525.60 : x
  2. Step 2: Convert to fraction form
    30,309.72/45,435.41 = 15,525.60/x
  3. Step 3: Cross multiply
    30,309.72x = 45,435.41 × 15,525.60
  4. Step 4: Simplify right side
    30,309.72x = 705,412,001.50
  5. Step 5: Solve for x
    x = 705,412,001.50/30,309.72
  6. Step 6: Final answer
    x = 23,273.46

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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.