Home / 30,724.63-46,104.86-12,954.21

Finding the Fourth Proportional to 30,724.63, 46,104.86 and 12,954.21

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Solution

The fourth proportional to 30,724.63, 46,104.86 and 12,954.21 is: 19,438.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.63 : 46,104.86 = 12,954.21 : x
  2. Step 2: Convert to fraction form
    30,724.63/46,104.86 = 12,954.21/x
  3. Step 3: Cross multiply
    30,724.63x = 46,104.86 × 12,954.21
  4. Step 4: Simplify right side
    30,724.63x = 597,252,038.46
  5. Step 5: Solve for x
    x = 597,252,038.46/30,724.63
  6. Step 6: Final answer
    x = 19,438.87

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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.