Home / 37,420.87-51,640.69-20,653.75

Finding the Fourth Proportional to 37,420.87, 51,640.69 and 20,653.75

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Solution

The fourth proportional to 37,420.87, 51,640.69 and 20,653.75 is: 28,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.87 : 51,640.69 = 20,653.75 : x
  2. Step 2: Convert to fraction form
    37,420.87/51,640.69 = 20,653.75/x
  3. Step 3: Cross multiply
    37,420.87x = 51,640.69 × 20,653.75
  4. Step 4: Simplify right side
    37,420.87x = 1,066,573,901.09
  5. Step 5: Solve for x
    x = 1,066,573,901.09/37,420.87
  6. Step 6: Final answer
    x = 28,502.11

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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.