Home / 58,378.86-87,579.23-18,930.84

Finding the Fourth Proportional to 58,378.86, 87,579.23 and 18,930.84

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Solution

The fourth proportional to 58,378.86, 87,579.23 and 18,930.84 is: 28,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,378.86 : 87,579.23 = 18,930.84 : x
  2. Step 2: Convert to fraction form
    58,378.86/87,579.23 = 18,930.84/x
  3. Step 3: Cross multiply
    58,378.86x = 87,579.23 × 18,930.84
  4. Step 4: Simplify right side
    58,378.86x = 1,657,948,295.80
  5. Step 5: Solve for x
    x = 1,657,948,295.80/58,378.86
  6. Step 6: Final answer
    x = 28,399.81

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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.