Home / 35,421.37-48,879.60-20,313.31

Finding the Fourth Proportional to 35,421.37, 48,879.60 and 20,313.31

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Solution

The fourth proportional to 35,421.37, 48,879.60 and 20,313.31 is: 28,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,421.37 : 48,879.60 = 20,313.31 : x
  2. Step 2: Convert to fraction form
    35,421.37/48,879.60 = 20,313.31/x
  3. Step 3: Cross multiply
    35,421.37x = 48,879.60 × 20,313.31
  4. Step 4: Simplify right side
    35,421.37x = 992,906,467.48
  5. Step 5: Solve for x
    x = 992,906,467.48/35,421.37
  6. Step 6: Final answer
    x = 28,031.28

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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.