Home / 27,746.91-38,288.76-15,808.05

Finding the Fourth Proportional to 27,746.91, 38,288.76 and 15,808.05

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Solution

The fourth proportional to 27,746.91, 38,288.76 and 15,808.05 is: 21,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,746.91 : 38,288.76 = 15,808.05 : x
  2. Step 2: Convert to fraction form
    27,746.91/38,288.76 = 15,808.05/x
  3. Step 3: Cross multiply
    27,746.91x = 38,288.76 × 15,808.05
  4. Step 4: Simplify right side
    27,746.91x = 605,270,632.52
  5. Step 5: Solve for x
    x = 605,270,632.52/27,746.91
  6. Step 6: Final answer
    x = 21,813.98

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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.