Home / 28,141.65-42,212.54-11,282.31

Finding the Fourth Proportional to 28,141.65, 42,212.54 and 11,282.31

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Solution

The fourth proportional to 28,141.65, 42,212.54 and 11,282.31 is: 16,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.65 : 42,212.54 = 11,282.31 : x
  2. Step 2: Convert to fraction form
    28,141.65/42,212.54 = 11,282.31/x
  3. Step 3: Cross multiply
    28,141.65x = 42,212.54 × 11,282.31
  4. Step 4: Simplify right side
    28,141.65x = 476,254,905.76
  5. Step 5: Solve for x
    x = 476,254,905.76/28,141.65
  6. Step 6: Final answer
    x = 16,923.49

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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.