Home / 28,938.12-43,407.54-9,216.60

Finding the Fourth Proportional to 28,938.12, 43,407.54 and 9,216.60

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Solution

The fourth proportional to 28,938.12, 43,407.54 and 9,216.60 is: 13,825.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.12 : 43,407.54 = 9,216.60 : x
  2. Step 2: Convert to fraction form
    28,938.12/43,407.54 = 9,216.60/x
  3. Step 3: Cross multiply
    28,938.12x = 43,407.54 × 9,216.60
  4. Step 4: Simplify right side
    28,938.12x = 400,069,933.16
  5. Step 5: Solve for x
    x = 400,069,933.16/28,938.12
  6. Step 6: Final answer
    x = 13,825.01

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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.