Home / 20,657.37-28,496.25-13,090.35

Finding the Fourth Proportional to 20,657.37, 28,496.25 and 13,090.35

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Solution

The fourth proportional to 20,657.37, 28,496.25 and 13,090.35 is: 18,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.37 : 28,496.25 = 13,090.35 : x
  2. Step 2: Convert to fraction form
    20,657.37/28,496.25 = 13,090.35/x
  3. Step 3: Cross multiply
    20,657.37x = 28,496.25 × 13,090.35
  4. Step 4: Simplify right side
    20,657.37x = 373,025,886.19
  5. Step 5: Solve for x
    x = 373,025,886.19/20,657.37
  6. Step 6: Final answer
    x = 18,057.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.