Home / 27,918.10-38,527.50-15,342.76

Finding the Fourth Proportional to 27,918.10, 38,527.50 and 15,342.76

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Solution

The fourth proportional to 27,918.10, 38,527.50 and 15,342.76 is: 21,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.10 : 38,527.50 = 15,342.76 : x
  2. Step 2: Convert to fraction form
    27,918.10/38,527.50 = 15,342.76/x
  3. Step 3: Cross multiply
    27,918.10x = 38,527.50 × 15,342.76
  4. Step 4: Simplify right side
    27,918.10x = 591,118,185.90
  5. Step 5: Solve for x
    x = 591,118,185.90/27,918.10
  6. Step 6: Final answer
    x = 21,173.30

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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.