Home / 27,808.52-38,345.01-17,720.99

Finding the Fourth Proportional to 27,808.52, 38,345.01 and 17,720.99

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Solution

The fourth proportional to 27,808.52, 38,345.01 and 17,720.99 is: 24,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.52 : 38,345.01 = 17,720.99 : x
  2. Step 2: Convert to fraction form
    27,808.52/38,345.01 = 17,720.99/x
  3. Step 3: Cross multiply
    27,808.52x = 38,345.01 × 17,720.99
  4. Step 4: Simplify right side
    27,808.52x = 679,511,538.76
  5. Step 5: Solve for x
    x = 679,511,538.76/27,808.52
  6. Step 6: Final answer
    x = 24,435.37

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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.