Home / 28,187.40-38,819.34-23,428.56

Finding the Fourth Proportional to 28,187.40, 38,819.34 and 23,428.56

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Solution

The fourth proportional to 28,187.40, 38,819.34 and 23,428.56 is: 32,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.40 : 38,819.34 = 23,428.56 : x
  2. Step 2: Convert to fraction form
    28,187.40/38,819.34 = 23,428.56/x
  3. Step 3: Cross multiply
    28,187.40x = 38,819.34 × 23,428.56
  4. Step 4: Simplify right side
    28,187.40x = 909,481,236.35
  5. Step 5: Solve for x
    x = 909,481,236.35/28,187.40
  6. Step 6: Final answer
    x = 32,265.52

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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.