Home / 20,391.53-30,587.31-5,602.64

Finding the Fourth Proportional to 20,391.53, 30,587.31 and 5,602.64

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Solution

The fourth proportional to 20,391.53, 30,587.31 and 5,602.64 is: 8,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.53 : 30,587.31 = 5,602.64 : x
  2. Step 2: Convert to fraction form
    20,391.53/30,587.31 = 5,602.64/x
  3. Step 3: Cross multiply
    20,391.53x = 30,587.31 × 5,602.64
  4. Step 4: Simplify right side
    20,391.53x = 171,369,533.56
  5. Step 5: Solve for x
    x = 171,369,533.56/20,391.53
  6. Step 6: Final answer
    x = 8,403.96

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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.