Home / 39,751.86-54,857.21-21,602.46

Finding the Fourth Proportional to 39,751.86, 54,857.21 and 21,602.46

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Solution

The fourth proportional to 39,751.86, 54,857.21 and 21,602.46 is: 29,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.86 : 54,857.21 = 21,602.46 : x
  2. Step 2: Convert to fraction form
    39,751.86/54,857.21 = 21,602.46/x
  3. Step 3: Cross multiply
    39,751.86x = 54,857.21 × 21,602.46
  4. Step 4: Simplify right side
    39,751.86x = 1,185,050,576.72
  5. Step 5: Solve for x
    x = 1,185,050,576.72/39,751.86
  6. Step 6: Final answer
    x = 29,811.20

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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.