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Finding the Fourth Proportional to 36,510.40, 50,384.64 and 20,158.12

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Solution

The fourth proportional to 36,510.40, 50,384.64 and 20,158.12 is: 27,818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,510.40 : 50,384.64 = 20,158.12 : x
  2. Step 2: Convert to fraction form
    36,510.40/50,384.64 = 20,158.12/x
  3. Step 3: Cross multiply
    36,510.40x = 50,384.64 × 20,158.12
  4. Step 4: Simplify right side
    36,510.40x = 1,015,659,619.28
  5. Step 5: Solve for x
    x = 1,015,659,619.28/36,510.40
  6. Step 6: Final answer
    x = 27,818.36

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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.