Home / 28,176.28-38,885.14-16,240.38

Finding the Fourth Proportional to 28,176.28, 38,885.14 and 16,240.38

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Solution

The fourth proportional to 28,176.28, 38,885.14 and 16,240.38 is: 22,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.28 : 38,885.14 = 16,240.38 : x
  2. Step 2: Convert to fraction form
    28,176.28/38,885.14 = 16,240.38/x
  3. Step 3: Cross multiply
    28,176.28x = 38,885.14 × 16,240.38
  4. Step 4: Simplify right side
    28,176.28x = 631,509,449.95
  5. Step 5: Solve for x
    x = 631,509,449.95/28,176.28
  6. Step 6: Final answer
    x = 22,412.80

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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.