Home / 30,619.48-45,915.34-10,898.54

Finding the Fourth Proportional to 30,619.48, 45,915.34 and 10,898.54

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Solution

The fourth proportional to 30,619.48, 45,915.34 and 10,898.54 is: 16,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.48 : 45,915.34 = 10,898.54 : x
  2. Step 2: Convert to fraction form
    30,619.48/45,915.34 = 10,898.54/x
  3. Step 3: Cross multiply
    30,619.48x = 45,915.34 × 10,898.54
  4. Step 4: Simplify right side
    30,619.48x = 500,410,169.60
  5. Step 5: Solve for x
    x = 500,410,169.60/30,619.48
  6. Step 6: Final answer
    x = 16,342.87

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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.