Home / 30,580.98-42,183.78-19,232.52

Finding the Fourth Proportional to 30,580.98, 42,183.78 and 19,232.52

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Solution

The fourth proportional to 30,580.98, 42,183.78 and 19,232.52 is: 26,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,580.98 : 42,183.78 = 19,232.52 : x
  2. Step 2: Convert to fraction form
    30,580.98/42,183.78 = 19,232.52/x
  3. Step 3: Cross multiply
    30,580.98x = 42,183.78 × 19,232.52
  4. Step 4: Simplify right side
    30,580.98x = 811,300,392.53
  5. Step 5: Solve for x
    x = 811,300,392.53/30,580.98
  6. Step 6: Final answer
    x = 26,529.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.