Home / 27,860.49-38,447.34-15,113.68

Finding the Fourth Proportional to 27,860.49, 38,447.34 and 15,113.68

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Solution

The fourth proportional to 27,860.49, 38,447.34 and 15,113.68 is: 20,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.49 : 38,447.34 = 15,113.68 : x
  2. Step 2: Convert to fraction form
    27,860.49/38,447.34 = 15,113.68/x
  3. Step 3: Cross multiply
    27,860.49x = 38,447.34 × 15,113.68
  4. Step 4: Simplify right side
    27,860.49x = 581,080,754.17
  5. Step 5: Solve for x
    x = 581,080,754.17/27,860.49
  6. Step 6: Final answer
    x = 20,856.81

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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.