Home / 25,710.40-38,563.98-8,192.80

Finding the Fourth Proportional to 25,710.40, 38,563.98 and 8,192.80

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Solution

The fourth proportional to 25,710.40, 38,563.98 and 8,192.80 is: 12,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,710.40 : 38,563.98 = 8,192.80 : x
  2. Step 2: Convert to fraction form
    25,710.40/38,563.98 = 8,192.80/x
  3. Step 3: Cross multiply
    25,710.40x = 38,563.98 × 8,192.80
  4. Step 4: Simplify right side
    25,710.40x = 315,946,975.34
  5. Step 5: Solve for x
    x = 315,946,975.34/25,710.40
  6. Step 6: Final answer
    x = 12,288.68

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1.5x scale

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.