Home / 28,871.32-39,842.04-16,124.72

Finding the Fourth Proportional to 28,871.32, 39,842.04 and 16,124.72

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Solution

The fourth proportional to 28,871.32, 39,842.04 and 16,124.72 is: 22,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.32 : 39,842.04 = 16,124.72 : x
  2. Step 2: Convert to fraction form
    28,871.32/39,842.04 = 16,124.72/x
  3. Step 3: Cross multiply
    28,871.32x = 39,842.04 × 16,124.72
  4. Step 4: Simplify right side
    28,871.32x = 642,441,739.23
  5. Step 5: Solve for x
    x = 642,441,739.23/28,871.32
  6. Step 6: Final answer
    x = 22,251.90

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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.