Home / 27,847.99-38,426.67-15,912.10

Finding the Fourth Proportional to 27,847.99, 38,426.67 and 15,912.10

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Solution

The fourth proportional to 27,847.99, 38,426.67 and 15,912.10 is: 21,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.99 : 38,426.67 = 15,912.10 : x
  2. Step 2: Convert to fraction form
    27,847.99/38,426.67 = 15,912.10/x
  3. Step 3: Cross multiply
    27,847.99x = 38,426.67 × 15,912.10
  4. Step 4: Simplify right side
    27,847.99x = 611,448,744.01
  5. Step 5: Solve for x
    x = 611,448,744.01/27,847.99
  6. Step 6: Final answer
    x = 21,956.66

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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.