Home / 19,938.26-27,315.55-19,190.90

Finding the Fourth Proportional to 19,938.26, 27,315.55 and 19,190.90

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Solution

The fourth proportional to 19,938.26, 27,315.55 and 19,190.90 is: 26,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.26 : 27,315.55 = 19,190.90 : x
  2. Step 2: Convert to fraction form
    19,938.26/27,315.55 = 19,190.90/x
  3. Step 3: Cross multiply
    19,938.26x = 27,315.55 × 19,190.90
  4. Step 4: Simplify right side
    19,938.26x = 524,209,988.50
  5. Step 5: Solve for x
    x = 524,209,988.50/19,938.26
  6. Step 6: Final answer
    x = 26,291.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.