Home / 19,505.91-29,127.27-19,299.90

Finding the Fourth Proportional to 19,505.91, 29,127.27 and 19,299.90

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Solution

The fourth proportional to 19,505.91, 29,127.27 and 19,299.90 is: 28,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.91 : 29,127.27 = 19,299.90 : x
  2. Step 2: Convert to fraction form
    19,505.91/29,127.27 = 19,299.90/x
  3. Step 3: Cross multiply
    19,505.91x = 29,127.27 × 19,299.90
  4. Step 4: Simplify right side
    19,505.91x = 562,153,398.27
  5. Step 5: Solve for x
    x = 562,153,398.27/19,505.91
  6. Step 6: Final answer
    x = 28,819.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.