Home / 27,977.09-38,608.53-15,401.84

Finding the Fourth Proportional to 27,977.09, 38,608.53 and 15,401.84

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Solution

The fourth proportional to 27,977.09, 38,608.53 and 15,401.84 is: 21,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.09 : 38,608.53 = 15,401.84 : x
  2. Step 2: Convert to fraction form
    27,977.09/38,608.53 = 15,401.84/x
  3. Step 3: Cross multiply
    27,977.09x = 38,608.53 × 15,401.84
  4. Step 4: Simplify right side
    27,977.09x = 594,642,401.70
  5. Step 5: Solve for x
    x = 594,642,401.70/27,977.09
  6. Step 6: Final answer
    x = 21,254.62

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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.