Home / 28,382.50-39,184.16-18,835.34

Finding the Fourth Proportional to 28,382.50, 39,184.16 and 18,835.34

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Solution

The fourth proportional to 28,382.50, 39,184.16 and 18,835.34 is: 26,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.50 : 39,184.16 = 18,835.34 : x
  2. Step 2: Convert to fraction form
    28,382.50/39,184.16 = 18,835.34/x
  3. Step 3: Cross multiply
    28,382.50x = 39,184.16 × 18,835.34
  4. Step 4: Simplify right side
    28,382.50x = 738,046,686.12
  5. Step 5: Solve for x
    x = 738,046,686.12/28,382.50
  6. Step 6: Final answer
    x = 26,003.58

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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.