Home / 28,243.29-42,365.22-8,522.01

Finding the Fourth Proportional to 28,243.29, 42,365.22 and 8,522.01

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Solution

The fourth proportional to 28,243.29, 42,365.22 and 8,522.01 is: 12,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.29 : 42,365.22 = 8,522.01 : x
  2. Step 2: Convert to fraction form
    28,243.29/42,365.22 = 8,522.01/x
  3. Step 3: Cross multiply
    28,243.29x = 42,365.22 × 8,522.01
  4. Step 4: Simplify right side
    28,243.29x = 361,036,828.49
  5. Step 5: Solve for x
    x = 361,036,828.49/28,243.29
  6. Step 6: Final answer
    x = 12,783.10

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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.