Home / 20,502.92-28,293.36-12,953.27

Finding the Fourth Proportional to 20,502.92, 28,293.36 and 12,953.27

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Solution

The fourth proportional to 20,502.92, 28,293.36 and 12,953.27 is: 17,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.92 : 28,293.36 = 12,953.27 : x
  2. Step 2: Convert to fraction form
    20,502.92/28,293.36 = 12,953.27/x
  3. Step 3: Cross multiply
    20,502.92x = 28,293.36 × 12,953.27
  4. Step 4: Simplify right side
    20,502.92x = 366,491,531.29
  5. Step 5: Solve for x
    x = 366,491,531.29/20,502.92
  6. Step 6: Final answer
    x = 17,875.09

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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.