Home / 31,215.94-46,823.95-12,747.94

Finding the Fourth Proportional to 31,215.94, 46,823.95 and 12,747.94

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Solution

The fourth proportional to 31,215.94, 46,823.95 and 12,747.94 is: 19,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.94 : 46,823.95 = 12,747.94 : x
  2. Step 2: Convert to fraction form
    31,215.94/46,823.95 = 12,747.94/x
  3. Step 3: Cross multiply
    31,215.94x = 46,823.95 × 12,747.94
  4. Step 4: Simplify right side
    31,215.94x = 596,908,804.04
  5. Step 5: Solve for x
    x = 596,908,804.04/31,215.94
  6. Step 6: Final answer
    x = 19,121.92

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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.