Home / 28,453.60-42,679.14-9,735.28

Finding the Fourth Proportional to 28,453.60, 42,679.14 and 9,735.28

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Solution

The fourth proportional to 28,453.60, 42,679.14 and 9,735.28 is: 14,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.60 : 42,679.14 = 9,735.28 : x
  2. Step 2: Convert to fraction form
    28,453.60/42,679.14 = 9,735.28/x
  3. Step 3: Cross multiply
    28,453.60x = 42,679.14 × 9,735.28
  4. Step 4: Simplify right side
    28,453.60x = 415,493,378.06
  5. Step 5: Solve for x
    x = 415,493,378.06/28,453.60
  6. Step 6: Final answer
    x = 14,602.49

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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.