Home / 20,437.55-30,656.27-5,646.45

Finding the Fourth Proportional to 20,437.55, 30,656.27 and 5,646.45

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Solution

The fourth proportional to 20,437.55, 30,656.27 and 5,646.45 is: 8,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.55 : 30,656.27 = 5,646.45 : x
  2. Step 2: Convert to fraction form
    20,437.55/30,656.27 = 5,646.45/x
  3. Step 3: Cross multiply
    20,437.55x = 30,656.27 × 5,646.45
  4. Step 4: Simplify right side
    20,437.55x = 173,099,009.27
  5. Step 5: Solve for x
    x = 173,099,009.27/20,437.55
  6. Step 6: Final answer
    x = 8,469.65

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Double scale
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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.