Home / 28,125.94-42,027.73-21,425.26

Finding the Fourth Proportional to 28,125.94, 42,027.73 and 21,425.26

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Solution

The fourth proportional to 28,125.94, 42,027.73 and 21,425.26 is: 32,015.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.94 : 42,027.73 = 21,425.26 : x
  2. Step 2: Convert to fraction form
    28,125.94/42,027.73 = 21,425.26/x
  3. Step 3: Cross multiply
    28,125.94x = 42,027.73 × 21,425.26
  4. Step 4: Simplify right side
    28,125.94x = 900,455,042.46
  5. Step 5: Solve for x
    x = 900,455,042.46/28,125.94
  6. Step 6: Final answer
    x = 32,015.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.