Home / 28,212.12-38,932.56-16,275.24

Finding the Fourth Proportional to 28,212.12, 38,932.56 and 16,275.24

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Solution

The fourth proportional to 28,212.12, 38,932.56 and 16,275.24 is: 22,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,212.12 : 38,932.56 = 16,275.24 : x
  2. Step 2: Convert to fraction form
    28,212.12/38,932.56 = 16,275.24/x
  3. Step 3: Cross multiply
    28,212.12x = 38,932.56 × 16,275.24
  4. Step 4: Simplify right side
    28,212.12x = 633,636,757.81
  5. Step 5: Solve for x
    x = 633,636,757.81/28,212.12
  6. Step 6: Final answer
    x = 22,459.74

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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.