Home / 28,511.07-42,784.96-15,372.60

Finding the Fourth Proportional to 28,511.07, 42,784.96 and 15,372.60

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Solution

The fourth proportional to 28,511.07, 42,784.96 and 15,372.60 is: 23,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.07 : 42,784.96 = 15,372.60 : x
  2. Step 2: Convert to fraction form
    28,511.07/42,784.96 = 15,372.60/x
  3. Step 3: Cross multiply
    28,511.07x = 42,784.96 × 15,372.60
  4. Step 4: Simplify right side
    28,511.07x = 657,716,076.10
  5. Step 5: Solve for x
    x = 657,716,076.10/28,511.07
  6. Step 6: Final answer
    x = 23,068.80

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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.