Home / 43,238.60-64,864.64-18,278.76

Finding the Fourth Proportional to 43,238.60, 64,864.64 and 18,278.76

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Solution

The fourth proportional to 43,238.60, 64,864.64 and 18,278.76 is: 27,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,238.60 : 64,864.64 = 18,278.76 : x
  2. Step 2: Convert to fraction form
    43,238.60/64,864.64 = 18,278.76/x
  3. Step 3: Cross multiply
    43,238.60x = 64,864.64 × 18,278.76
  4. Step 4: Simplify right side
    43,238.60x = 1,185,645,187.05
  5. Step 5: Solve for x
    x = 1,185,645,187.05/43,238.60
  6. Step 6: Final answer
    x = 27,420.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.