Home / 30,239.81-45,360.34-11,004.90

Finding the Fourth Proportional to 30,239.81, 45,360.34 and 11,004.90

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Solution

The fourth proportional to 30,239.81, 45,360.34 and 11,004.90 is: 16,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.81 : 45,360.34 = 11,004.90 : x
  2. Step 2: Convert to fraction form
    30,239.81/45,360.34 = 11,004.90/x
  3. Step 3: Cross multiply
    30,239.81x = 45,360.34 × 11,004.90
  4. Step 4: Simplify right side
    30,239.81x = 499,185,808.05
  5. Step 5: Solve for x
    x = 499,185,808.05/30,239.81
  6. Step 6: Final answer
    x = 16,507.57

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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.