Home / 43,990.56-65,985.84-12,828.24

Finding the Fourth Proportional to 43,990.56, 65,985.84 and 12,828.24

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Solution

The fourth proportional to 43,990.56, 65,985.84 and 12,828.24 is: 19,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990.56 : 65,985.84 = 12,828.24 : x
  2. Step 2: Convert to fraction form
    43,990.56/65,985.84 = 12,828.24/x
  3. Step 3: Cross multiply
    43,990.56x = 65,985.84 × 12,828.24
  4. Step 4: Simplify right side
    43,990.56x = 846,482,192.12
  5. Step 5: Solve for x
    x = 846,482,192.12/43,990.56
  6. Step 6: Final answer
    x = 19,242.36

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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.