Home / 20,374.65-28,126.23-12,832.07

Finding the Fourth Proportional to 20,374.65, 28,126.23 and 12,832.07

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Solution

The fourth proportional to 20,374.65, 28,126.23 and 12,832.07 is: 17,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.65 : 28,126.23 = 12,832.07 : x
  2. Step 2: Convert to fraction form
    20,374.65/28,126.23 = 12,832.07/x
  3. Step 3: Cross multiply
    20,374.65x = 28,126.23 × 12,832.07
  4. Step 4: Simplify right side
    20,374.65x = 360,917,646.72
  5. Step 5: Solve for x
    x = 360,917,646.72/20,374.65
  6. Step 6: Final answer
    x = 17,714.05

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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.