Home / 43,655.04-65,485.44-12,490.56

Finding the Fourth Proportional to 43,655.04, 65,485.44 and 12,490.56

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Solution

The fourth proportional to 43,655.04, 65,485.44 and 12,490.56 is: 18,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,655.04 : 65,485.44 = 12,490.56 : x
  2. Step 2: Convert to fraction form
    43,655.04/65,485.44 = 12,490.56/x
  3. Step 3: Cross multiply
    43,655.04x = 65,485.44 × 12,490.56
  4. Step 4: Simplify right side
    43,655.04x = 817,949,817.45
  5. Step 5: Solve for x
    x = 817,949,817.45/43,655.04
  6. Step 6: Final answer
    x = 18,736.66

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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.