Home / 28,650.56-42,956.78-14,615.68

Finding the Fourth Proportional to 28,650.56, 42,956.78 and 14,615.68

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Solution

The fourth proportional to 28,650.56, 42,956.78 and 14,615.68 is: 21,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.56 : 42,956.78 = 14,615.68 : x
  2. Step 2: Convert to fraction form
    28,650.56/42,956.78 = 14,615.68/x
  3. Step 3: Cross multiply
    28,650.56x = 42,956.78 × 14,615.68
  4. Step 4: Simplify right side
    28,650.56x = 627,842,550.31
  5. Step 5: Solve for x
    x = 627,842,550.31/28,650.56
  6. Step 6: Final answer
    x = 21,913.80

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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.