Home / 30,604.32-42,249.60-19,277.28

Finding the Fourth Proportional to 30,604.32, 42,249.60 and 19,277.28

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Solution

The fourth proportional to 30,604.32, 42,249.60 and 19,277.28 is: 26,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.32 : 42,249.60 = 19,277.28 : x
  2. Step 2: Convert to fraction form
    30,604.32/42,249.60 = 19,277.28/x
  3. Step 3: Cross multiply
    30,604.32x = 42,249.60 × 19,277.28
  4. Step 4: Simplify right side
    30,604.32x = 814,457,369.09
  5. Step 5: Solve for x
    x = 814,457,369.09/30,604.32
  6. Step 6: Final answer
    x = 26,612.50

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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.