Home / 20,322.40-30,485.76-6,468.16

Finding the Fourth Proportional to 20,322.40, 30,485.76 and 6,468.16

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Solution

The fourth proportional to 20,322.40, 30,485.76 and 6,468.16 is: 9,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.40 : 30,485.76 = 6,468.16 : x
  2. Step 2: Convert to fraction form
    20,322.40/30,485.76 = 6,468.16/x
  3. Step 3: Cross multiply
    20,322.40x = 30,485.76 × 6,468.16
  4. Step 4: Simplify right side
    20,322.40x = 197,186,773.40
  5. Step 5: Solve for x
    x = 197,186,773.40/20,322.40
  6. Step 6: Final answer
    x = 9,702.93

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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.