Home / 34,906.40-48,168.36-20,756.60

Finding the Fourth Proportional to 34,906.40, 48,168.36 and 20,756.60

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Solution

The fourth proportional to 34,906.40, 48,168.36 and 20,756.60 is: 28,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,906.40 : 48,168.36 = 20,756.60 : x
  2. Step 2: Convert to fraction form
    34,906.40/48,168.36 = 20,756.60/x
  3. Step 3: Cross multiply
    34,906.40x = 48,168.36 × 20,756.60
  4. Step 4: Simplify right side
    34,906.40x = 999,811,381.18
  5. Step 5: Solve for x
    x = 999,811,381.18/34,906.40
  6. Step 6: Final answer
    x = 28,642.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.