Home / 28,164.68-38,869.13-16,228.79

Finding the Fourth Proportional to 28,164.68, 38,869.13 and 16,228.79

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Solution

The fourth proportional to 28,164.68, 38,869.13 and 16,228.79 is: 22,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.68 : 38,869.13 = 16,228.79 : x
  2. Step 2: Convert to fraction form
    28,164.68/38,869.13 = 16,228.79/x
  3. Step 3: Cross multiply
    28,164.68x = 38,869.13 × 16,228.79
  4. Step 4: Simplify right side
    28,164.68x = 630,798,672.76
  5. Step 5: Solve for x
    x = 630,798,672.76/28,164.68
  6. Step 6: Final answer
    x = 22,396.80

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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.