Home / 43,250.28-64,840.86-18,643.56

Finding the Fourth Proportional to 43,250.28, 64,840.86 and 18,643.56

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Solution

The fourth proportional to 43,250.28, 64,840.86 and 18,643.56 is: 27,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,250.28 : 64,840.86 = 18,643.56 : x
  2. Step 2: Convert to fraction form
    43,250.28/64,840.86 = 18,643.56/x
  3. Step 3: Cross multiply
    43,250.28x = 64,840.86 × 18,643.56
  4. Step 4: Simplify right side
    43,250.28x = 1,208,864,463.86
  5. Step 5: Solve for x
    x = 1,208,864,463.86/43,250.28
  6. Step 6: Final answer
    x = 27,950.44

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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.