Home / 40,190.40-55,451.52-23,420.16

Finding the Fourth Proportional to 40,190.40, 55,451.52 and 23,420.16

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Solution

The fourth proportional to 40,190.40, 55,451.52 and 23,420.16 is: 32,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,190.40 : 55,451.52 = 23,420.16 : x
  2. Step 2: Convert to fraction form
    40,190.40/55,451.52 = 23,420.16/x
  3. Step 3: Cross multiply
    40,190.40x = 55,451.52 × 23,420.16
  4. Step 4: Simplify right side
    40,190.40x = 1,298,683,470.64
  5. Step 5: Solve for x
    x = 1,298,683,470.64/40,190.40
  6. Step 6: Final answer
    x = 32,313.28

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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.