Home / 28,774.28-39,714.62-19,337.37

Finding the Fourth Proportional to 28,774.28, 39,714.62 and 19,337.37

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Solution

The fourth proportional to 28,774.28, 39,714.62 and 19,337.37 is: 26,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.28 : 39,714.62 = 19,337.37 : x
  2. Step 2: Convert to fraction form
    28,774.28/39,714.62 = 19,337.37/x
  3. Step 3: Cross multiply
    28,774.28x = 39,714.62 × 19,337.37
  4. Step 4: Simplify right side
    28,774.28x = 767,976,349.69
  5. Step 5: Solve for x
    x = 767,976,349.69/28,774.28
  6. Step 6: Final answer
    x = 26,689.69

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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.