Home / 47,228.64-70,826.27-13,939.80

Finding the Fourth Proportional to 47,228.64, 70,826.27 and 13,939.80

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Solution

The fourth proportional to 47,228.64, 70,826.27 and 13,939.80 is: 20,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,228.64 : 70,826.27 = 13,939.80 : x
  2. Step 2: Convert to fraction form
    47,228.64/70,826.27 = 13,939.80/x
  3. Step 3: Cross multiply
    47,228.64x = 70,826.27 × 13,939.80
  4. Step 4: Simplify right side
    47,228.64x = 987,303,703.25
  5. Step 5: Solve for x
    x = 987,303,703.25/47,228.64
  6. Step 6: Final answer
    x = 20,904.77

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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.