Home / 27,858.81-38,423.70-19,360.83

Finding the Fourth Proportional to 27,858.81, 38,423.70 and 19,360.83

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Solution

The fourth proportional to 27,858.81, 38,423.70 and 19,360.83 is: 26,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.81 : 38,423.70 = 19,360.83 : x
  2. Step 2: Convert to fraction form
    27,858.81/38,423.70 = 19,360.83/x
  3. Step 3: Cross multiply
    27,858.81x = 38,423.70 × 19,360.83
  4. Step 4: Simplify right side
    27,858.81x = 743,914,723.67
  5. Step 5: Solve for x
    x = 743,914,723.67/27,858.81
  6. Step 6: Final answer
    x = 26,703.03

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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.