Home / 28,438.24-42,656.96-12,844.96

Finding the Fourth Proportional to 28,438.24, 42,656.96 and 12,844.96

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Solution

The fourth proportional to 28,438.24, 42,656.96 and 12,844.96 is: 19,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.24 : 42,656.96 = 12,844.96 : x
  2. Step 2: Convert to fraction form
    28,438.24/42,656.96 = 12,844.96/x
  3. Step 3: Cross multiply
    28,438.24x = 42,656.96 × 12,844.96
  4. Step 4: Simplify right side
    28,438.24x = 547,926,944.92
  5. Step 5: Solve for x
    x = 547,926,944.92/28,438.24
  6. Step 6: Final answer
    x = 19,267.26

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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.