Home / 21,151.14-31,667.67-16,240.74

Finding the Fourth Proportional to 21,151.14, 31,667.67 and 16,240.74

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Solution

The fourth proportional to 21,151.14, 31,667.67 and 16,240.74 is: 24,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151.14 : 31,667.67 = 16,240.74 : x
  2. Step 2: Convert to fraction form
    21,151.14/31,667.67 = 16,240.74/x
  3. Step 3: Cross multiply
    21,151.14x = 31,667.67 × 16,240.74
  4. Step 4: Simplify right side
    21,151.14x = 514,306,394.88
  5. Step 5: Solve for x
    x = 514,306,394.88/21,151.14
  6. Step 6: Final answer
    x = 24,315.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.