Home / 28,678.42-39,575.28-16,103.26

Finding the Fourth Proportional to 28,678.42, 39,575.28 and 16,103.26

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Solution

The fourth proportional to 28,678.42, 39,575.28 and 16,103.26 is: 22,221.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.42 : 39,575.28 = 16,103.26 : x
  2. Step 2: Convert to fraction form
    28,678.42/39,575.28 = 16,103.26/x
  3. Step 3: Cross multiply
    28,678.42x = 39,575.28 × 16,103.26
  4. Step 4: Simplify right side
    28,678.42x = 637,291,023.41
  5. Step 5: Solve for x
    x = 637,291,023.41/28,678.42
  6. Step 6: Final answer
    x = 22,221.97

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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.