Home / 34,209.64-47,209.35-20,777.32

Finding the Fourth Proportional to 34,209.64, 47,209.35 and 20,777.32

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Solution

The fourth proportional to 34,209.64, 47,209.35 and 20,777.32 is: 28,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,209.64 : 47,209.35 = 20,777.32 : x
  2. Step 2: Convert to fraction form
    34,209.64/47,209.35 = 20,777.32/x
  3. Step 3: Cross multiply
    34,209.64x = 47,209.35 × 20,777.32
  4. Step 4: Simplify right side
    34,209.64x = 980,883,771.94
  5. Step 5: Solve for x
    x = 980,883,771.94/34,209.64
  6. Step 6: Final answer
    x = 28,672.73

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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.