Home / 42,651.16-63,998.36-28,771

Finding the Fourth Proportional to 42,651.16, 63,998.36 and 28,771

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Solution

The fourth proportional to 42,651.16, 63,998.36 and 28,771 is: 43,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,651.16 : 63,998.36 = 28,771 : x
  2. Step 2: Convert to fraction form
    42,651.16/63,998.36 = 28,771/x
  3. Step 3: Cross multiply
    42,651.16x = 63,998.36 × 28,771
  4. Step 4: Simplify right side
    42,651.16x = 1,841,296,815.56
  5. Step 5: Solve for x
    x = 1,841,296,815.56/42,651.16
  6. Step 6: Final answer
    x = 43,171.08

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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.