Home / 20,594.42-28,388.85-12,621.86

Finding the Fourth Proportional to 20,594.42, 28,388.85 and 12,621.86

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Solution

The fourth proportional to 20,594.42, 28,388.85 and 12,621.86 is: 17,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.42 : 28,388.85 = 12,621.86 : x
  2. Step 2: Convert to fraction form
    20,594.42/28,388.85 = 12,621.86/x
  3. Step 3: Cross multiply
    20,594.42x = 28,388.85 × 12,621.86
  4. Step 4: Simplify right side
    20,594.42x = 358,320,090.26
  5. Step 5: Solve for x
    x = 358,320,090.26/20,594.42
  6. Step 6: Final answer
    x = 17,398.89

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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.