Home / 35,311.45-48,739.05-21,875.08

Finding the Fourth Proportional to 35,311.45, 48,739.05 and 21,875.08

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Solution

The fourth proportional to 35,311.45, 48,739.05 and 21,875.08 is: 30,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,311.45 : 48,739.05 = 21,875.08 : x
  2. Step 2: Convert to fraction form
    35,311.45/48,739.05 = 21,875.08/x
  3. Step 3: Cross multiply
    35,311.45x = 48,739.05 × 21,875.08
  4. Step 4: Simplify right side
    35,311.45x = 1,066,170,617.87
  5. Step 5: Solve for x
    x = 1,066,170,617.87/35,311.45
  6. Step 6: Final answer
    x = 30,193.34

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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.