Home / 40,280.20-60,420.30-25,311.40

Finding the Fourth Proportional to 40,280.20, 60,420.30 and 25,311.40

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Solution

The fourth proportional to 40,280.20, 60,420.30 and 25,311.40 is: 37,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,280.20 : 60,420.30 = 25,311.40 : x
  2. Step 2: Convert to fraction form
    40,280.20/60,420.30 = 25,311.40/x
  3. Step 3: Cross multiply
    40,280.20x = 60,420.30 × 25,311.40
  4. Step 4: Simplify right side
    40,280.20x = 1,529,322,381.42
  5. Step 5: Solve for x
    x = 1,529,322,381.42/40,280.20
  6. Step 6: Final answer
    x = 37,967.10

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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.