Home / 37,677.31-51,991.84-20,678.86

Finding the Fourth Proportional to 37,677.31, 51,991.84 and 20,678.86

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Solution

The fourth proportional to 37,677.31, 51,991.84 and 20,678.86 is: 28,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,677.31 : 51,991.84 = 20,678.86 : x
  2. Step 2: Convert to fraction form
    37,677.31/51,991.84 = 20,678.86/x
  3. Step 3: Cross multiply
    37,677.31x = 51,991.84 × 20,678.86
  4. Step 4: Simplify right side
    37,677.31x = 1,075,131,980.50
  5. Step 5: Solve for x
    x = 1,075,131,980.50/37,677.31
  6. Step 6: Final answer
    x = 28,535.26

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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.