Home / 27,378.96-37,788.44-15,442.53

Finding the Fourth Proportional to 27,378.96, 37,788.44 and 15,442.53

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Solution

The fourth proportional to 27,378.96, 37,788.44 and 15,442.53 is: 21,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.96 : 37,788.44 = 15,442.53 : x
  2. Step 2: Convert to fraction form
    27,378.96/37,788.44 = 15,442.53/x
  3. Step 3: Cross multiply
    27,378.96x = 37,788.44 × 15,442.53
  4. Step 4: Simplify right side
    27,378.96x = 583,549,041.14
  5. Step 5: Solve for x
    x = 583,549,041.14/27,378.96
  6. Step 6: Final answer
    x = 21,313.78

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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.