Home / 27,900.28-38,501.44-19,955.80

Finding the Fourth Proportional to 27,900.28, 38,501.44 and 19,955.80

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Solution

The fourth proportional to 27,900.28, 38,501.44 and 19,955.80 is: 27,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.28 : 38,501.44 = 19,955.80 : x
  2. Step 2: Convert to fraction form
    27,900.28/38,501.44 = 19,955.80/x
  3. Step 3: Cross multiply
    27,900.28x = 38,501.44 × 19,955.80
  4. Step 4: Simplify right side
    27,900.28x = 768,327,036.35
  5. Step 5: Solve for x
    x = 768,327,036.35/27,900.28
  6. Step 6: Final answer
    x = 27,538.33

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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.