Home / 30,476.84-45,718.86-12,936.92

Finding the Fourth Proportional to 30,476.84, 45,718.86 and 12,936.92

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Solution

The fourth proportional to 30,476.84, 45,718.86 and 12,936.92 is: 19,406.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.84 : 45,718.86 = 12,936.92 : x
  2. Step 2: Convert to fraction form
    30,476.84/45,718.86 = 12,936.92/x
  3. Step 3: Cross multiply
    30,476.84x = 45,718.86 × 12,936.92
  4. Step 4: Simplify right side
    30,476.84x = 591,461,234.31
  5. Step 5: Solve for x
    x = 591,461,234.31/30,476.84
  6. Step 6: Final answer
    x = 19,406.91

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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.