Home / 27,938.19-38,554.86-15,191.50

Finding the Fourth Proportional to 27,938.19, 38,554.86 and 15,191.50

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Solution

The fourth proportional to 27,938.19, 38,554.86 and 15,191.50 is: 20,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.19 : 38,554.86 = 15,191.50 : x
  2. Step 2: Convert to fraction form
    27,938.19/38,554.86 = 15,191.50/x
  3. Step 3: Cross multiply
    27,938.19x = 38,554.86 × 15,191.50
  4. Step 4: Simplify right side
    27,938.19x = 585,706,145.84
  5. Step 5: Solve for x
    x = 585,706,145.84/27,938.19
  6. Step 6: Final answer
    x = 20,964.35

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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.