Home / 22,756.91-31,404.67-12,685.99

Finding the Fourth Proportional to 22,756.91, 31,404.67 and 12,685.99

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Solution

The fourth proportional to 22,756.91, 31,404.67 and 12,685.99 is: 17,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,756.91 : 31,404.67 = 12,685.99 : x
  2. Step 2: Convert to fraction form
    22,756.91/31,404.67 = 12,685.99/x
  3. Step 3: Cross multiply
    22,756.91x = 31,404.67 × 12,685.99
  4. Step 4: Simplify right side
    22,756.91x = 398,399,329.57
  5. Step 5: Solve for x
    x = 398,399,329.57/22,756.91
  6. Step 6: Final answer
    x = 17,506.74

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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.