Home / 28,349.50-42,526.05-8,629.51

Finding the Fourth Proportional to 28,349.50, 42,526.05 and 8,629.51

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Solution

The fourth proportional to 28,349.50, 42,526.05 and 8,629.51 is: 12,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.50 : 42,526.05 = 8,629.51 : x
  2. Step 2: Convert to fraction form
    28,349.50/42,526.05 = 8,629.51/x
  3. Step 3: Cross multiply
    28,349.50x = 42,526.05 × 8,629.51
  4. Step 4: Simplify right side
    28,349.50x = 366,978,973.74
  5. Step 5: Solve for x
    x = 366,978,973.74/28,349.50
  6. Step 6: Final answer
    x = 12,944.81

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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.