Home / 27,620.68-38,130.66-18,715.24

Finding the Fourth Proportional to 27,620.68, 38,130.66 and 18,715.24

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Solution

The fourth proportional to 27,620.68, 38,130.66 and 18,715.24 is: 25,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.68 : 38,130.66 = 18,715.24 : x
  2. Step 2: Convert to fraction form
    27,620.68/38,130.66 = 18,715.24/x
  3. Step 3: Cross multiply
    27,620.68x = 38,130.66 × 18,715.24
  4. Step 4: Simplify right side
    27,620.68x = 713,624,453.26
  5. Step 5: Solve for x
    x = 713,624,453.26/27,620.68
  6. Step 6: Final answer
    x = 25,836.60

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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.