Home / 38,659.86-57,989.79-17,880.66

Finding the Fourth Proportional to 38,659.86, 57,989.79 and 17,880.66

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Solution

The fourth proportional to 38,659.86, 57,989.79 and 17,880.66 is: 26,820.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,659.86 : 57,989.79 = 17,880.66 : x
  2. Step 2: Convert to fraction form
    38,659.86/57,989.79 = 17,880.66/x
  3. Step 3: Cross multiply
    38,659.86x = 57,989.79 × 17,880.66
  4. Step 4: Simplify right side
    38,659.86x = 1,036,895,718.46
  5. Step 5: Solve for x
    x = 1,036,895,718.46/38,659.86
  6. Step 6: Final answer
    x = 26,820.99

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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.