Home / 28,259.44-39,005.12-16,329.72

Finding the Fourth Proportional to 28,259.44, 39,005.12 and 16,329.72

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Solution

The fourth proportional to 28,259.44, 39,005.12 and 16,329.72 is: 22,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.44 : 39,005.12 = 16,329.72 : x
  2. Step 2: Convert to fraction form
    28,259.44/39,005.12 = 16,329.72/x
  3. Step 3: Cross multiply
    28,259.44x = 39,005.12 × 16,329.72
  4. Step 4: Simplify right side
    28,259.44x = 636,942,688.17
  5. Step 5: Solve for x
    x = 636,942,688.17/28,259.44
  6. Step 6: Final answer
    x = 22,539.11

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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.