Home / 40,136.58-55,383.84-23,140.71

Finding the Fourth Proportional to 40,136.58, 55,383.84 and 23,140.71

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Solution

The fourth proportional to 40,136.58, 55,383.84 and 23,140.71 is: 31,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.58 : 55,383.84 = 23,140.71 : x
  2. Step 2: Convert to fraction form
    40,136.58/55,383.84 = 23,140.71/x
  3. Step 3: Cross multiply
    40,136.58x = 55,383.84 × 23,140.71
  4. Step 4: Simplify right side
    40,136.58x = 1,281,621,380.13
  5. Step 5: Solve for x
    x = 1,281,621,380.13/40,136.58
  6. Step 6: Final answer
    x = 31,931.50

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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.