Home / 27,687.42-38,206.89-15,750.05

Finding the Fourth Proportional to 27,687.42, 38,206.89 and 15,750.05

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Solution

The fourth proportional to 27,687.42, 38,206.89 and 15,750.05 is: 21,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.42 : 38,206.89 = 15,750.05 : x
  2. Step 2: Convert to fraction form
    27,687.42/38,206.89 = 15,750.05/x
  3. Step 3: Cross multiply
    27,687.42x = 38,206.89 × 15,750.05
  4. Step 4: Simplify right side
    27,687.42x = 601,760,236.81
  5. Step 5: Solve for x
    x = 601,760,236.81/27,687.42
  6. Step 6: Final answer
    x = 21,734.07

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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.