Home / 27,381.54-37,785.89-15,445.08

Finding the Fourth Proportional to 27,381.54, 37,785.89 and 15,445.08

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Solution

The fourth proportional to 27,381.54, 37,785.89 and 15,445.08 is: 21,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.54 : 37,785.89 = 15,445.08 : x
  2. Step 2: Convert to fraction form
    27,381.54/37,785.89 = 15,445.08/x
  3. Step 3: Cross multiply
    27,381.54x = 37,785.89 × 15,445.08
  4. Step 4: Simplify right side
    27,381.54x = 583,606,132.53
  5. Step 5: Solve for x
    x = 583,606,132.53/27,381.54
  6. Step 6: Final answer
    x = 21,313.85

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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.