Home / 47,903.28-66,103.36-28,771.69

Finding the Fourth Proportional to 47,903.28, 66,103.36 and 28,771.69

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Solution

The fourth proportional to 47,903.28, 66,103.36 and 28,771.69 is: 39,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,903.28 : 66,103.36 = 28,771.69 : x
  2. Step 2: Convert to fraction form
    47,903.28/66,103.36 = 28,771.69/x
  3. Step 3: Cross multiply
    47,903.28x = 66,103.36 × 28,771.69
  4. Step 4: Simplify right side
    47,903.28x = 1,901,905,381.88
  5. Step 5: Solve for x
    x = 1,901,905,381.88/47,903.28
  6. Step 6: Final answer
    x = 39,703.03

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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.