Home / 25,699.10-38,554.31-10,920.65

Finding the Fourth Proportional to 25,699.10, 38,554.31 and 10,920.65

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Solution

The fourth proportional to 25,699.10, 38,554.31 and 10,920.65 is: 16,383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,699.10 : 38,554.31 = 10,920.65 : x
  2. Step 2: Convert to fraction form
    25,699.10/38,554.31 = 10,920.65/x
  3. Step 3: Cross multiply
    25,699.10x = 38,554.31 × 10,920.65
  4. Step 4: Simplify right side
    25,699.10x = 421,037,932.73
  5. Step 5: Solve for x
    x = 421,037,932.73/25,699.10
  6. Step 6: Final answer
    x = 16,383.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.