Home / 20,429.65-28,196.20-19,095.58

Finding the Fourth Proportional to 20,429.65, 28,196.20 and 19,095.58

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Solution

The fourth proportional to 20,429.65, 28,196.20 and 19,095.58 is: 26,354.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429.65 : 28,196.20 = 19,095.58 : x
  2. Step 2: Convert to fraction form
    20,429.65/28,196.20 = 19,095.58/x
  3. Step 3: Cross multiply
    20,429.65x = 28,196.20 × 19,095.58
  4. Step 4: Simplify right side
    20,429.65x = 538,422,792.80
  5. Step 5: Solve for x
    x = 538,422,792.80/20,429.65
  6. Step 6: Final answer
    x = 26,354.97

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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.