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Finding the Fourth Proportional to 35,303.63, 48,723.32 and 20,399.63

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Solution

The fourth proportional to 35,303.63, 48,723.32 and 20,399.63 is: 28,153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,303.63 : 48,723.32 = 20,399.63 : x
  2. Step 2: Convert to fraction form
    35,303.63/48,723.32 = 20,399.63/x
  3. Step 3: Cross multiply
    35,303.63x = 48,723.32 × 20,399.63
  4. Step 4: Simplify right side
    35,303.63x = 993,937,507.75
  5. Step 5: Solve for x
    x = 993,937,507.75/35,303.63
  6. Step 6: Final answer
    x = 28,153.98

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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.