Home / 38,423.86-57,622.80-18,689.86

Finding the Fourth Proportional to 38,423.86, 57,622.80 and 18,689.86

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Solution

The fourth proportional to 38,423.86, 57,622.80 and 18,689.86 is: 28,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423.86 : 57,622.80 = 18,689.86 : x
  2. Step 2: Convert to fraction form
    38,423.86/57,622.80 = 18,689.86/x
  3. Step 3: Cross multiply
    38,423.86x = 57,622.80 × 18,689.86
  4. Step 4: Simplify right side
    38,423.86x = 1,076,962,064.81
  5. Step 5: Solve for x
    x = 1,076,962,064.81/38,423.86
  6. Step 6: Final answer
    x = 28,028.47

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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.