Home / 28,262.94-42,425.07-21,262.92

Finding the Fourth Proportional to 28,262.94, 42,425.07 and 21,262.92

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Solution

The fourth proportional to 28,262.94, 42,425.07 and 21,262.92 is: 31,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.94 : 42,425.07 = 21,262.92 : x
  2. Step 2: Convert to fraction form
    28,262.94/42,425.07 = 21,262.92/x
  3. Step 3: Cross multiply
    28,262.94x = 42,425.07 × 21,262.92
  4. Step 4: Simplify right side
    28,262.94x = 902,080,869.40
  5. Step 5: Solve for x
    x = 902,080,869.40/28,262.94
  6. Step 6: Final answer
    x = 31,917.45

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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.