Home / 27,860.74-38,447.52-15,285.48

Finding the Fourth Proportional to 27,860.74, 38,447.52 and 15,285.48

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Solution

The fourth proportional to 27,860.74, 38,447.52 and 15,285.48 is: 21,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.74 : 38,447.52 = 15,285.48 : x
  2. Step 2: Convert to fraction form
    27,860.74/38,447.52 = 15,285.48/x
  3. Step 3: Cross multiply
    27,860.74x = 38,447.52 × 15,285.48
  4. Step 4: Simplify right side
    27,860.74x = 587,688,798.01
  5. Step 5: Solve for x
    x = 587,688,798.01/27,860.74
  6. Step 6: Final answer
    x = 21,093.80

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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.