Home / 37,187.32-51,318.46-20,420.32

Finding the Fourth Proportional to 37,187.32, 51,318.46 and 20,420.32

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Solution

The fourth proportional to 37,187.32, 51,318.46 and 20,420.32 is: 28,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,187.32 : 51,318.46 = 20,420.32 : x
  2. Step 2: Convert to fraction form
    37,187.32/51,318.46 = 20,420.32/x
  3. Step 3: Cross multiply
    37,187.32x = 51,318.46 × 20,420.32
  4. Step 4: Simplify right side
    37,187.32x = 1,047,939,195.76
  5. Step 5: Solve for x
    x = 1,047,939,195.76/37,187.32
  6. Step 6: Final answer
    x = 28,180.02

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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.