Home / 40,065.16-55,301.46-28,131.40

Finding the Fourth Proportional to 40,065.16, 55,301.46 and 28,131.40

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Solution

The fourth proportional to 40,065.16, 55,301.46 and 28,131.40 is: 38,829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,065.16 : 55,301.46 = 28,131.40 : x
  2. Step 2: Convert to fraction form
    40,065.16/55,301.46 = 28,131.40/x
  3. Step 3: Cross multiply
    40,065.16x = 55,301.46 × 28,131.40
  4. Step 4: Simplify right side
    40,065.16x = 1,555,707,491.84
  5. Step 5: Solve for x
    x = 1,555,707,491.84/40,065.16
  6. Step 6: Final answer
    x = 38,829.43

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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.