Home / 25,160.20-37,740.36-8,520.40

Finding the Fourth Proportional to 25,160.20, 37,740.36 and 8,520.40

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Solution

The fourth proportional to 25,160.20, 37,740.36 and 8,520.40 is: 12,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,160.20 : 37,740.36 = 8,520.40 : x
  2. Step 2: Convert to fraction form
    25,160.20/37,740.36 = 8,520.40/x
  3. Step 3: Cross multiply
    25,160.20x = 37,740.36 × 8,520.40
  4. Step 4: Simplify right side
    25,160.20x = 321,562,963.34
  5. Step 5: Solve for x
    x = 321,562,963.34/25,160.20
  6. Step 6: Final answer
    x = 12,780.62

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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.