Home / 30,288.36-45,438.64-10,561.62

Finding the Fourth Proportional to 30,288.36, 45,438.64 and 10,561.62

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Solution

The fourth proportional to 30,288.36, 45,438.64 and 10,561.62 is: 15,844.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.36 : 45,438.64 = 10,561.62 : x
  2. Step 2: Convert to fraction form
    30,288.36/45,438.64 = 10,561.62/x
  3. Step 3: Cross multiply
    30,288.36x = 45,438.64 × 10,561.62
  4. Step 4: Simplify right side
    30,288.36x = 479,905,649.00
  5. Step 5: Solve for x
    x = 479,905,649.00/30,288.36
  6. Step 6: Final answer
    x = 15,844.56

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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.