Home / 20,374.41-28,123.56-12,833.37

Finding the Fourth Proportional to 20,374.41, 28,123.56 and 12,833.37

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Solution

The fourth proportional to 20,374.41, 28,123.56 and 12,833.37 is: 17,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.41 : 28,123.56 = 12,833.37 : x
  2. Step 2: Convert to fraction form
    20,374.41/28,123.56 = 12,833.37/x
  3. Step 3: Cross multiply
    20,374.41x = 28,123.56 × 12,833.37
  4. Step 4: Simplify right side
    20,374.41x = 360,920,051.20
  5. Step 5: Solve for x
    x = 360,920,051.20/20,374.41
  6. Step 6: Final answer
    x = 17,714.38

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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.