Home / 28,752.60-39,678.28-16,005.56

Finding the Fourth Proportional to 28,752.60, 39,678.28 and 16,005.56

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Solution

The fourth proportional to 28,752.60, 39,678.28 and 16,005.56 is: 22,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.60 : 39,678.28 = 16,005.56 : x
  2. Step 2: Convert to fraction form
    28,752.60/39,678.28 = 16,005.56/x
  3. Step 3: Cross multiply
    28,752.60x = 39,678.28 × 16,005.56
  4. Step 4: Simplify right side
    28,752.60x = 635,073,091.24
  5. Step 5: Solve for x
    x = 635,073,091.24/28,752.60
  6. Step 6: Final answer
    x = 22,087.50

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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.