Home / 30,908.12-42,621.12-26,446.64

Finding the Fourth Proportional to 30,908.12, 42,621.12 and 26,446.64

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Solution

The fourth proportional to 30,908.12, 42,621.12 and 26,446.64 is: 36,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.12 : 42,621.12 = 26,446.64 : x
  2. Step 2: Convert to fraction form
    30,908.12/42,621.12 = 26,446.64/x
  3. Step 3: Cross multiply
    30,908.12x = 42,621.12 × 26,446.64
  4. Step 4: Simplify right side
    30,908.12x = 1,127,185,203.93
  5. Step 5: Solve for x
    x = 1,127,185,203.93/30,908.12
  6. Step 6: Final answer
    x = 36,468.91

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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.