Home / 28,938.56-43,416.05-9,218.63

Finding the Fourth Proportional to 28,938.56, 43,416.05 and 9,218.63

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Solution

The fourth proportional to 28,938.56, 43,416.05 and 9,218.63 is: 13,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.56 : 43,416.05 = 9,218.63 : x
  2. Step 2: Convert to fraction form
    28,938.56/43,416.05 = 9,218.63/x
  3. Step 3: Cross multiply
    28,938.56x = 43,416.05 × 9,218.63
  4. Step 4: Simplify right side
    28,938.56x = 400,236,598.03
  5. Step 5: Solve for x
    x = 400,236,598.03/28,938.56
  6. Step 6: Final answer
    x = 13,830.57

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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.