Home / 40,135.10-60,157.08-13,818.20

Finding the Fourth Proportional to 40,135.10, 60,157.08 and 13,818.20

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Solution

The fourth proportional to 40,135.10, 60,157.08 and 13,818.20 is: 20,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.10 : 60,157.08 = 13,818.20 : x
  2. Step 2: Convert to fraction form
    40,135.10/60,157.08 = 13,818.20/x
  3. Step 3: Cross multiply
    40,135.10x = 60,157.08 × 13,818.20
  4. Step 4: Simplify right side
    40,135.10x = 831,262,262.07
  5. Step 5: Solve for x
    x = 831,262,262.07/40,135.10
  6. Step 6: Final answer
    x = 20,711.61

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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.