Home / 37,439.58-51,666.32-20,443.78

Finding the Fourth Proportional to 37,439.58, 51,666.32 and 20,443.78

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Solution

The fourth proportional to 37,439.58, 51,666.32 and 20,443.78 is: 28,212.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,439.58 : 51,666.32 = 20,443.78 : x
  2. Step 2: Convert to fraction form
    37,439.58/51,666.32 = 20,443.78/x
  3. Step 3: Cross multiply
    37,439.58x = 51,666.32 × 20,443.78
  4. Step 4: Simplify right side
    37,439.58x = 1,056,254,879.49
  5. Step 5: Solve for x
    x = 1,056,254,879.49/37,439.58
  6. Step 6: Final answer
    x = 28,212.25

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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.