Home / 28,708.76-39,621.80-16,133.50

Finding the Fourth Proportional to 28,708.76, 39,621.80 and 16,133.50

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Solution

The fourth proportional to 28,708.76, 39,621.80 and 16,133.50 is: 22,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.76 : 39,621.80 = 16,133.50 : x
  2. Step 2: Convert to fraction form
    28,708.76/39,621.80 = 16,133.50/x
  3. Step 3: Cross multiply
    28,708.76x = 39,621.80 × 16,133.50
  4. Step 4: Simplify right side
    28,708.76x = 639,238,310.30
  5. Step 5: Solve for x
    x = 639,238,310.30/28,708.76
  6. Step 6: Final answer
    x = 22,266.32

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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.