Home / 27,730.92-38,268.59-15,155.67

Finding the Fourth Proportional to 27,730.92, 38,268.59 and 15,155.67

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Solution

The fourth proportional to 27,730.92, 38,268.59 and 15,155.67 is: 20,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,730.92 : 38,268.59 = 15,155.67 : x
  2. Step 2: Convert to fraction form
    27,730.92/38,268.59 = 15,155.67/x
  3. Step 3: Cross multiply
    27,730.92x = 38,268.59 × 15,155.67
  4. Step 4: Simplify right side
    27,730.92x = 579,986,045.63
  5. Step 5: Solve for x
    x = 579,986,045.63/27,730.92
  6. Step 6: Final answer
    x = 20,914.78

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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.