Home / 27,881.40-38,501.26-20,795.52

Finding the Fourth Proportional to 27,881.40, 38,501.26 and 20,795.52

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Solution

The fourth proportional to 27,881.40, 38,501.26 and 20,795.52 is: 28,716.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.40 : 38,501.26 = 20,795.52 : x
  2. Step 2: Convert to fraction form
    27,881.40/38,501.26 = 20,795.52/x
  3. Step 3: Cross multiply
    27,881.40x = 38,501.26 × 20,795.52
  4. Step 4: Simplify right side
    27,881.40x = 800,653,722.36
  5. Step 5: Solve for x
    x = 800,653,722.36/27,881.40
  6. Step 6: Final answer
    x = 28,716.41

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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.