Home / 28,806.39-39,744.54-18,749.63

Finding the Fourth Proportional to 28,806.39, 39,744.54 and 18,749.63

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Solution

The fourth proportional to 28,806.39, 39,744.54 and 18,749.63 is: 25,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.39 : 39,744.54 = 18,749.63 : x
  2. Step 2: Convert to fraction form
    28,806.39/39,744.54 = 18,749.63/x
  3. Step 3: Cross multiply
    28,806.39x = 39,744.54 × 18,749.63
  4. Step 4: Simplify right side
    28,806.39x = 745,195,419.52
  5. Step 5: Solve for x
    x = 745,195,419.52/28,806.39
  6. Step 6: Final answer
    x = 25,869.10

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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.