Home / 28,202.86-42,308.01-10,431.10

Finding the Fourth Proportional to 28,202.86, 42,308.01 and 10,431.10

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Solution

The fourth proportional to 28,202.86, 42,308.01 and 10,431.10 is: 15,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.86 : 42,308.01 = 10,431.10 : x
  2. Step 2: Convert to fraction form
    28,202.86/42,308.01 = 10,431.10/x
  3. Step 3: Cross multiply
    28,202.86x = 42,308.01 × 10,431.10
  4. Step 4: Simplify right side
    28,202.86x = 441,319,083.11
  5. Step 5: Solve for x
    x = 441,319,083.11/28,202.86
  6. Step 6: Final answer
    x = 15,648.03

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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.