Home / 28,686.48-39,588.96-16,112.04

Finding the Fourth Proportional to 28,686.48, 39,588.96 and 16,112.04

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Solution

The fourth proportional to 28,686.48, 39,588.96 and 16,112.04 is: 22,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.48 : 39,588.96 = 16,112.04 : x
  2. Step 2: Convert to fraction form
    28,686.48/39,588.96 = 16,112.04/x
  3. Step 3: Cross multiply
    28,686.48x = 39,588.96 × 16,112.04
  4. Step 4: Simplify right side
    28,686.48x = 637,858,907.08
  5. Step 5: Solve for x
    x = 637,858,907.08/28,686.48
  6. Step 6: Final answer
    x = 22,235.52

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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.