Home / 28,881.36-39,856.86-16,306.38

Finding the Fourth Proportional to 28,881.36, 39,856.86 and 16,306.38

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Solution

The fourth proportional to 28,881.36, 39,856.86 and 16,306.38 is: 22,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.36 : 39,856.86 = 16,306.38 : x
  2. Step 2: Convert to fraction form
    28,881.36/39,856.86 = 16,306.38/x
  3. Step 3: Cross multiply
    28,881.36x = 39,856.86 × 16,306.38
  4. Step 4: Simplify right side
    28,881.36x = 649,921,104.77
  5. Step 5: Solve for x
    x = 649,921,104.77/28,881.36
  6. Step 6: Final answer
    x = 22,503.13

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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.