Home / 27,868.56-38,490.55-18,350.99

Finding the Fourth Proportional to 27,868.56, 38,490.55 and 18,350.99

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Solution

The fourth proportional to 27,868.56, 38,490.55 and 18,350.99 is: 25,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.56 : 38,490.55 = 18,350.99 : x
  2. Step 2: Convert to fraction form
    27,868.56/38,490.55 = 18,350.99/x
  3. Step 3: Cross multiply
    27,868.56x = 38,490.55 × 18,350.99
  4. Step 4: Simplify right side
    27,868.56x = 706,339,707.38
  5. Step 5: Solve for x
    x = 706,339,707.38/27,868.56
  6. Step 6: Final answer
    x = 25,345.40

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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.