Home / 28,102.89-42,153.31-7,043.10

Finding the Fourth Proportional to 28,102.89, 42,153.31 and 7,043.10

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Solution

The fourth proportional to 28,102.89, 42,153.31 and 7,043.10 is: 10,564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.89 : 42,153.31 = 7,043.10 : x
  2. Step 2: Convert to fraction form
    28,102.89/42,153.31 = 7,043.10/x
  3. Step 3: Cross multiply
    28,102.89x = 42,153.31 × 7,043.10
  4. Step 4: Simplify right side
    28,102.89x = 296,889,977.66
  5. Step 5: Solve for x
    x = 296,889,977.66/28,102.89
  6. Step 6: Final answer
    x = 10,564.39

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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.