Home / 45,881.38-63,289.47-28,858.78

Finding the Fourth Proportional to 45,881.38, 63,289.47 and 28,858.78

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Solution

The fourth proportional to 45,881.38, 63,289.47 and 28,858.78 is: 39,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,881.38 : 63,289.47 = 28,858.78 : x
  2. Step 2: Convert to fraction form
    45,881.38/63,289.47 = 28,858.78/x
  3. Step 3: Cross multiply
    45,881.38x = 63,289.47 × 28,858.78
  4. Step 4: Simplify right side
    45,881.38x = 1,826,456,891.05
  5. Step 5: Solve for x
    x = 1,826,456,891.05/45,881.38
  6. Step 6: Final answer
    x = 39,808.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.