Home / 20,388.15-30,580.79-5,595.93

Finding the Fourth Proportional to 20,388.15, 30,580.79 and 5,595.93

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Solution

The fourth proportional to 20,388.15, 30,580.79 and 5,595.93 is: 8,393.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.15 : 30,580.79 = 5,595.93 : x
  2. Step 2: Convert to fraction form
    20,388.15/30,580.79 = 5,595.93/x
  3. Step 3: Cross multiply
    20,388.15x = 30,580.79 × 5,595.93
  4. Step 4: Simplify right side
    20,388.15x = 171,127,932.21
  5. Step 5: Solve for x
    x = 171,127,932.21/20,388.15
  6. Step 6: Final answer
    x = 8,393.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.