Home / 38,784.89-58,182.80-13,819.59

Finding the Fourth Proportional to 38,784.89, 58,182.80 and 13,819.59

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Solution

The fourth proportional to 38,784.89, 58,182.80 and 13,819.59 is: 20,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784.89 : 58,182.80 = 13,819.59 : x
  2. Step 2: Convert to fraction form
    38,784.89/58,182.80 = 13,819.59/x
  3. Step 3: Cross multiply
    38,784.89x = 58,182.80 × 13,819.59
  4. Step 4: Simplify right side
    38,784.89x = 804,062,371.95
  5. Step 5: Solve for x
    x = 804,062,371.95/38,784.89
  6. Step 6: Final answer
    x = 20,731.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.