Home / 20,963.67-28,934.00-12,017.18

Finding the Fourth Proportional to 20,963.67, 28,934.00 and 12,017.18

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Solution

The fourth proportional to 20,963.67, 28,934.00 and 12,017.18 is: 16,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.67 : 28,934.00 = 12,017.18 : x
  2. Step 2: Convert to fraction form
    20,963.67/28,934.00 = 12,017.18/x
  3. Step 3: Cross multiply
    20,963.67x = 28,934.00 × 12,017.18
  4. Step 4: Simplify right side
    20,963.67x = 347,704,881.36
  5. Step 5: Solve for x
    x = 347,704,881.36/20,963.67
  6. Step 6: Final answer
    x = 16,586.07

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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.