Home / 28,615.24-42,927.81-9,638.06

Finding the Fourth Proportional to 28,615.24, 42,927.81 and 9,638.06

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Solution

The fourth proportional to 28,615.24, 42,927.81 and 9,638.06 is: 14,458.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.24 : 42,927.81 = 9,638.06 : x
  2. Step 2: Convert to fraction form
    28,615.24/42,927.81 = 9,638.06/x
  3. Step 3: Cross multiply
    28,615.24x = 42,927.81 × 9,638.06
  4. Step 4: Simplify right side
    28,615.24x = 413,740,557.67
  5. Step 5: Solve for x
    x = 413,740,557.67/28,615.24
  6. Step 6: Final answer
    x = 14,458.75

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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.