Home / 51,628.58-71,251.11-28,969.74

Finding the Fourth Proportional to 51,628.58, 71,251.11 and 28,969.74

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Solution

The fourth proportional to 51,628.58, 71,251.11 and 28,969.74 is: 39,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,628.58 : 71,251.11 = 28,969.74 : x
  2. Step 2: Convert to fraction form
    51,628.58/71,251.11 = 28,969.74/x
  3. Step 3: Cross multiply
    51,628.58x = 71,251.11 × 28,969.74
  4. Step 4: Simplify right side
    51,628.58x = 2,064,126,131.41
  5. Step 5: Solve for x
    x = 2,064,126,131.41/51,628.58
  6. Step 6: Final answer
    x = 39,980.30

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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.