Home / 28,014.60-38,651.90-16,678.43

Finding the Fourth Proportional to 28,014.60, 38,651.90 and 16,678.43

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Solution

The fourth proportional to 28,014.60, 38,651.90 and 16,678.43 is: 23,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.60 : 38,651.90 = 16,678.43 : x
  2. Step 2: Convert to fraction form
    28,014.60/38,651.90 = 16,678.43/x
  3. Step 3: Cross multiply
    28,014.60x = 38,651.90 × 16,678.43
  4. Step 4: Simplify right side
    28,014.60x = 644,653,008.52
  5. Step 5: Solve for x
    x = 644,653,008.52/28,014.60
  6. Step 6: Final answer
    x = 23,011.32

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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.