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Finding the Fourth Proportional to 30,895.56, 46,349.76 and 12,427.56

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Solution

The fourth proportional to 30,895.56, 46,349.76 and 12,427.56 is: 18,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,895.56 : 46,349.76 = 12,427.56 : x
  2. Step 2: Convert to fraction form
    30,895.56/46,349.76 = 12,427.56/x
  3. Step 3: Cross multiply
    30,895.56x = 46,349.76 × 12,427.56
  4. Step 4: Simplify right side
    30,895.56x = 576,014,423.39
  5. Step 5: Solve for x
    x = 576,014,423.39/30,895.56
  6. Step 6: Final answer
    x = 18,643.92

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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.