Home / 25,424.86-38,136.68-8,784.30

Finding the Fourth Proportional to 25,424.86, 38,136.68 and 8,784.30

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Solution

The fourth proportional to 25,424.86, 38,136.68 and 8,784.30 is: 13,176.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,424.86 : 38,136.68 = 8,784.30 : x
  2. Step 2: Convert to fraction form
    25,424.86/38,136.68 = 8,784.30/x
  3. Step 3: Cross multiply
    25,424.86x = 38,136.68 × 8,784.30
  4. Step 4: Simplify right side
    25,424.86x = 335,004,038.12
  5. Step 5: Solve for x
    x = 335,004,038.12/25,424.86
  6. Step 6: Final answer
    x = 13,176.24

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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.