Home / 30,558.65-45,838.01-8,372.22

Finding the Fourth Proportional to 30,558.65, 45,838.01 and 8,372.22

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Solution

The fourth proportional to 30,558.65, 45,838.01 and 8,372.22 is: 12,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.65 : 45,838.01 = 8,372.22 : x
  2. Step 2: Convert to fraction form
    30,558.65/45,838.01 = 8,372.22/x
  3. Step 3: Cross multiply
    30,558.65x = 45,838.01 × 8,372.22
  4. Step 4: Simplify right side
    30,558.65x = 383,765,904.08
  5. Step 5: Solve for x
    x = 383,765,904.08/30,558.65
  6. Step 6: Final answer
    x = 12,558.34

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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.