Home / 30,606.40-45,898.80-10,885.60

Finding the Fourth Proportional to 30,606.40, 45,898.80 and 10,885.60

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Solution

The fourth proportional to 30,606.40, 45,898.80 and 10,885.60 is: 16,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,606.40 : 45,898.80 = 10,885.60 : x
  2. Step 2: Convert to fraction form
    30,606.40/45,898.80 = 10,885.60/x
  3. Step 3: Cross multiply
    30,606.40x = 45,898.80 × 10,885.60
  4. Step 4: Simplify right side
    30,606.40x = 499,635,977.28
  5. Step 5: Solve for x
    x = 499,635,977.28/30,606.40
  6. Step 6: Final answer
    x = 16,324.56

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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.