Home / 30,797.56-42,507.23-19,459.86

Finding the Fourth Proportional to 30,797.56, 42,507.23 and 19,459.86

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Solution

The fourth proportional to 30,797.56, 42,507.23 and 19,459.86 is: 26,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797.56 : 42,507.23 = 19,459.86 : x
  2. Step 2: Convert to fraction form
    30,797.56/42,507.23 = 19,459.86/x
  3. Step 3: Cross multiply
    30,797.56x = 42,507.23 × 19,459.86
  4. Step 4: Simplify right side
    30,797.56x = 827,184,744.79
  5. Step 5: Solve for x
    x = 827,184,744.79/30,797.56
  6. Step 6: Final answer
    x = 26,858.78

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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.