Home / 20,727.62-28,595.98-12,756.00

Finding the Fourth Proportional to 20,727.62, 28,595.98 and 12,756.00

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Solution

The fourth proportional to 20,727.62, 28,595.98 and 12,756.00 is: 17,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.62 : 28,595.98 = 12,756.00 : x
  2. Step 2: Convert to fraction form
    20,727.62/28,595.98 = 12,756.00/x
  3. Step 3: Cross multiply
    20,727.62x = 28,595.98 × 12,756.00
  4. Step 4: Simplify right side
    20,727.62x = 364,770,444.06
  5. Step 5: Solve for x
    x = 364,770,444.06/20,727.62
  6. Step 6: Final answer
    x = 17,598.28

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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.