Home / 20,196.34-30,292.08-5,406.40

Finding the Fourth Proportional to 20,196.34, 30,292.08 and 5,406.40

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Solution

The fourth proportional to 20,196.34, 30,292.08 and 5,406.40 is: 8,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.34 : 30,292.08 = 5,406.40 : x
  2. Step 2: Convert to fraction form
    20,196.34/30,292.08 = 5,406.40/x
  3. Step 3: Cross multiply
    20,196.34x = 30,292.08 × 5,406.40
  4. Step 4: Simplify right side
    20,196.34x = 163,771,101.31
  5. Step 5: Solve for x
    x = 163,771,101.31/20,196.34
  6. Step 6: Final answer
    x = 8,108.95

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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.