Home / 20,393.02-28,145.64-12,009.52

Finding the Fourth Proportional to 20,393.02, 28,145.64 and 12,009.52

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Solution

The fourth proportional to 20,393.02, 28,145.64 and 12,009.52 is: 16,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.02 : 28,145.64 = 12,009.52 : x
  2. Step 2: Convert to fraction form
    20,393.02/28,145.64 = 12,009.52/x
  3. Step 3: Cross multiply
    20,393.02x = 28,145.64 × 12,009.52
  4. Step 4: Simplify right side
    20,393.02x = 338,015,626.49
  5. Step 5: Solve for x
    x = 338,015,626.49/20,393.02
  6. Step 6: Final answer
    x = 16,575.06

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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.