Home / 28,008.42-38,651.20-16,071.49

Finding the Fourth Proportional to 28,008.42, 38,651.20 and 16,071.49

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Solution

The fourth proportional to 28,008.42, 38,651.20 and 16,071.49 is: 22,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.42 : 38,651.20 = 16,071.49 : x
  2. Step 2: Convert to fraction form
    28,008.42/38,651.20 = 16,071.49/x
  3. Step 3: Cross multiply
    28,008.42x = 38,651.20 × 16,071.49
  4. Step 4: Simplify right side
    28,008.42x = 621,182,374.29
  5. Step 5: Solve for x
    x = 621,182,374.29/28,008.42
  6. Step 6: Final answer
    x = 22,178.42

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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.