Home / 27,725.15-38,260.72-14,978.33

Finding the Fourth Proportional to 27,725.15, 38,260.72 and 14,978.33

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Solution

The fourth proportional to 27,725.15, 38,260.72 and 14,978.33 is: 20,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,725.15 : 38,260.72 = 14,978.33 : x
  2. Step 2: Convert to fraction form
    27,725.15/38,260.72 = 14,978.33/x
  3. Step 3: Cross multiply
    27,725.15x = 38,260.72 × 14,978.33
  4. Step 4: Simplify right side
    27,725.15x = 573,081,770.19
  5. Step 5: Solve for x
    x = 573,081,770.19/27,725.15
  6. Step 6: Final answer
    x = 20,670.10

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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.