Home / 28,856.28-39,817.80-16,109.04

Finding the Fourth Proportional to 28,856.28, 39,817.80 and 16,109.04

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Solution

The fourth proportional to 28,856.28, 39,817.80 and 16,109.04 is: 22,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.28 : 39,817.80 = 16,109.04 : x
  2. Step 2: Convert to fraction form
    28,856.28/39,817.80 = 16,109.04/x
  3. Step 3: Cross multiply
    28,856.28x = 39,817.80 × 16,109.04
  4. Step 4: Simplify right side
    28,856.28x = 641,426,532.91
  5. Step 5: Solve for x
    x = 641,426,532.91/28,856.28
  6. Step 6: Final answer
    x = 22,228.32

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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.