Home / 28,828.48-39,785.48-16,085.76

Finding the Fourth Proportional to 28,828.48, 39,785.48 and 16,085.76

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Solution

The fourth proportional to 28,828.48, 39,785.48 and 16,085.76 is: 22,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.48 : 39,785.48 = 16,085.76 : x
  2. Step 2: Convert to fraction form
    28,828.48/39,785.48 = 16,085.76/x
  3. Step 3: Cross multiply
    28,828.48x = 39,785.48 × 16,085.76
  4. Step 4: Simplify right side
    28,828.48x = 639,979,682.76
  5. Step 5: Solve for x
    x = 639,979,682.76/28,828.48
  6. Step 6: Final answer
    x = 22,199.56

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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.