Home / 30,558.77-45,838.19-8,372.34

Finding the Fourth Proportional to 30,558.77, 45,838.19 and 8,372.34

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Solution

The fourth proportional to 30,558.77, 45,838.19 and 8,372.34 is: 12,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.77 : 45,838.19 = 8,372.34 : x
  2. Step 2: Convert to fraction form
    30,558.77/45,838.19 = 8,372.34/x
  3. Step 3: Cross multiply
    30,558.77x = 45,838.19 × 8,372.34
  4. Step 4: Simplify right side
    30,558.77x = 383,772,932.60
  5. Step 5: Solve for x
    x = 383,772,932.60/30,558.77
  6. Step 6: Final answer
    x = 12,558.52

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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.