Home / 28,230.42-42,344.32-11,586.34

Finding the Fourth Proportional to 28,230.42, 42,344.32 and 11,586.34

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Solution

The fourth proportional to 28,230.42, 42,344.32 and 11,586.34 is: 17,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.42 : 42,344.32 = 11,586.34 : x
  2. Step 2: Convert to fraction form
    28,230.42/42,344.32 = 11,586.34/x
  3. Step 3: Cross multiply
    28,230.42x = 42,344.32 × 11,586.34
  4. Step 4: Simplify right side
    28,230.42x = 490,615,688.59
  5. Step 5: Solve for x
    x = 490,615,688.59/28,230.42
  6. Step 6: Final answer
    x = 17,378.97

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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.