Home / 27,929.94-41,890.14-9,210.18

Finding the Fourth Proportional to 27,929.94, 41,890.14 and 9,210.18

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Solution

The fourth proportional to 27,929.94, 41,890.14 and 9,210.18 is: 13,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,929.94 : 41,890.14 = 9,210.18 : x
  2. Step 2: Convert to fraction form
    27,929.94/41,890.14 = 9,210.18/x
  3. Step 3: Cross multiply
    27,929.94x = 41,890.14 × 9,210.18
  4. Step 4: Simplify right side
    27,929.94x = 385,815,729.63
  5. Step 5: Solve for x
    x = 385,815,729.63/27,929.94
  6. Step 6: Final answer
    x = 13,813.70

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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.