Home / 28,674.63-43,043.07-21,154.59

Finding the Fourth Proportional to 28,674.63, 43,043.07 and 21,154.59

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Solution

The fourth proportional to 28,674.63, 43,043.07 and 21,154.59 is: 31,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.63 : 43,043.07 = 21,154.59 : x
  2. Step 2: Convert to fraction form
    28,674.63/43,043.07 = 21,154.59/x
  3. Step 3: Cross multiply
    28,674.63x = 43,043.07 × 21,154.59
  4. Step 4: Simplify right side
    28,674.63x = 910,558,498.19
  5. Step 5: Solve for x
    x = 910,558,498.19/28,674.63
  6. Step 6: Final answer
    x = 31,754.85

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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.