Home / 28,891.64-43,318.26-10,421.24

Finding the Fourth Proportional to 28,891.64, 43,318.26 and 10,421.24

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Solution

The fourth proportional to 28,891.64, 43,318.26 and 10,421.24 is: 15,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.64 : 43,318.26 = 10,421.24 : x
  2. Step 2: Convert to fraction form
    28,891.64/43,318.26 = 10,421.24/x
  3. Step 3: Cross multiply
    28,891.64x = 43,318.26 × 10,421.24
  4. Step 4: Simplify right side
    28,891.64x = 451,429,983.84
  5. Step 5: Solve for x
    x = 451,429,983.84/28,891.64
  6. Step 6: Final answer
    x = 15,624.93

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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.