Home / 27,588.06-38,075.54-15,489.90

Finding the Fourth Proportional to 27,588.06, 38,075.54 and 15,489.90

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Solution

The fourth proportional to 27,588.06, 38,075.54 and 15,489.90 is: 21,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,588.06 : 38,075.54 = 15,489.90 : x
  2. Step 2: Convert to fraction form
    27,588.06/38,075.54 = 15,489.90/x
  3. Step 3: Cross multiply
    27,588.06x = 38,075.54 × 15,489.90
  4. Step 4: Simplify right side
    27,588.06x = 589,786,229.60
  5. Step 5: Solve for x
    x = 589,786,229.60/27,588.06
  6. Step 6: Final answer
    x = 21,378.31

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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.