Home / 28,613.52-42,861.24-21,226.32

Finding the Fourth Proportional to 28,613.52, 42,861.24 and 21,226.32

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Solution

The fourth proportional to 28,613.52, 42,861.24 and 21,226.32 is: 31,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.52 : 42,861.24 = 21,226.32 : x
  2. Step 2: Convert to fraction form
    28,613.52/42,861.24 = 21,226.32/x
  3. Step 3: Cross multiply
    28,613.52x = 42,861.24 × 21,226.32
  4. Step 4: Simplify right side
    28,613.52x = 909,786,395.84
  5. Step 5: Solve for x
    x = 909,786,395.84/28,613.52
  6. Step 6: Final answer
    x = 31,795.68

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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.