Home / 28,380.32-42,573.36-10,864.88

Finding the Fourth Proportional to 28,380.32, 42,573.36 and 10,864.88

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Solution

The fourth proportional to 28,380.32, 42,573.36 and 10,864.88 is: 16,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.32 : 42,573.36 = 10,864.88 : x
  2. Step 2: Convert to fraction form
    28,380.32/42,573.36 = 10,864.88/x
  3. Step 3: Cross multiply
    28,380.32x = 42,573.36 × 10,864.88
  4. Step 4: Simplify right side
    28,380.32x = 462,554,447.60
  5. Step 5: Solve for x
    x = 462,554,447.60/28,380.32
  6. Step 6: Final answer
    x = 16,298.42

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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.