Home / 36,420.87-50,260.71-20,510.43

Finding the Fourth Proportional to 36,420.87, 50,260.71 and 20,510.43

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Solution

The fourth proportional to 36,420.87, 50,260.71 and 20,510.43 is: 28,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.87 : 50,260.71 = 20,510.43 : x
  2. Step 2: Convert to fraction form
    36,420.87/50,260.71 = 20,510.43/x
  3. Step 3: Cross multiply
    36,420.87x = 50,260.71 × 20,510.43
  4. Step 4: Simplify right side
    36,420.87x = 1,030,868,774.21
  5. Step 5: Solve for x
    x = 1,030,868,774.21/36,420.87
  6. Step 6: Final answer
    x = 28,304.34

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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.