Home / 20,807.04-28,714.85-12,314.19

Finding the Fourth Proportional to 20,807.04, 28,714.85 and 12,314.19

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Solution

The fourth proportional to 20,807.04, 28,714.85 and 12,314.19 is: 16,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807.04 : 28,714.85 = 12,314.19 : x
  2. Step 2: Convert to fraction form
    20,807.04/28,714.85 = 12,314.19/x
  3. Step 3: Cross multiply
    20,807.04x = 28,714.85 × 12,314.19
  4. Step 4: Simplify right side
    20,807.04x = 353,600,118.72
  5. Step 5: Solve for x
    x = 353,600,118.72/20,807.04
  6. Step 6: Final answer
    x = 16,994.25

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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.