Home / 40,311.48-55,637.04-30,153.48

Finding the Fourth Proportional to 40,311.48, 55,637.04 and 30,153.48

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Solution

The fourth proportional to 40,311.48, 55,637.04 and 30,153.48 is: 41,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,311.48 : 55,637.04 = 30,153.48 : x
  2. Step 2: Convert to fraction form
    40,311.48/55,637.04 = 30,153.48/x
  3. Step 3: Cross multiply
    40,311.48x = 55,637.04 × 30,153.48
  4. Step 4: Simplify right side
    40,311.48x = 1,677,650,372.90
  5. Step 5: Solve for x
    x = 1,677,650,372.90/40,311.48
  6. Step 6: Final answer
    x = 41,617.19

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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.