Home / 27,840.63-38,419.82-15,265.11

Finding the Fourth Proportional to 27,840.63, 38,419.82 and 15,265.11

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Solution

The fourth proportional to 27,840.63, 38,419.82 and 15,265.11 is: 21,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,840.63 : 38,419.82 = 15,265.11 : x
  2. Step 2: Convert to fraction form
    27,840.63/38,419.82 = 15,265.11/x
  3. Step 3: Cross multiply
    27,840.63x = 38,419.82 × 15,265.11
  4. Step 4: Simplify right side
    27,840.63x = 586,482,702.15
  5. Step 5: Solve for x
    x = 586,482,702.15/27,840.63
  6. Step 6: Final answer
    x = 21,065.71

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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.