Home / 20,285.52-28,013.34-19,181.16

Finding the Fourth Proportional to 20,285.52, 28,013.34 and 19,181.16

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Solution

The fourth proportional to 20,285.52, 28,013.34 and 19,181.16 is: 26,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.52 : 28,013.34 = 19,181.16 : x
  2. Step 2: Convert to fraction form
    20,285.52/28,013.34 = 19,181.16/x
  3. Step 3: Cross multiply
    20,285.52x = 28,013.34 × 19,181.16
  4. Step 4: Simplify right side
    20,285.52x = 537,328,356.67
  5. Step 5: Solve for x
    x = 537,328,356.67/20,285.52
  6. Step 6: Final answer
    x = 26,488.27

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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.