Home / 38,095.89-57,089.39-21,420.93

Finding the Fourth Proportional to 38,095.89, 57,089.39 and 21,420.93

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Solution

The fourth proportional to 38,095.89, 57,089.39 and 21,420.93 is: 32,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,095.89 : 57,089.39 = 21,420.93 : x
  2. Step 2: Convert to fraction form
    38,095.89/57,089.39 = 21,420.93/x
  3. Step 3: Cross multiply
    38,095.89x = 57,089.39 × 21,420.93
  4. Step 4: Simplify right side
    38,095.89x = 1,222,907,984.21
  5. Step 5: Solve for x
    x = 1,222,907,984.21/38,095.89
  6. Step 6: Final answer
    x = 32,100.78

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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.