Home / 27,860.36-38,447.08-15,113.57

Finding the Fourth Proportional to 27,860.36, 38,447.08 and 15,113.57

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Solution

The fourth proportional to 27,860.36, 38,447.08 and 15,113.57 is: 20,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.36 : 38,447.08 = 15,113.57 : x
  2. Step 2: Convert to fraction form
    27,860.36/38,447.08 = 15,113.57/x
  3. Step 3: Cross multiply
    27,860.36x = 38,447.08 × 15,113.57
  4. Step 4: Simplify right side
    27,860.36x = 581,072,404.86
  5. Step 5: Solve for x
    x = 581,072,404.86/27,860.36
  6. Step 6: Final answer
    x = 20,856.60

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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.