Home / 40,141.63-55,414.70-28,215.19

Finding the Fourth Proportional to 40,141.63, 55,414.70 and 28,215.19

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Solution

The fourth proportional to 40,141.63, 55,414.70 and 28,215.19 is: 38,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,141.63 : 55,414.70 = 28,215.19 : x
  2. Step 2: Convert to fraction form
    40,141.63/55,414.70 = 28,215.19/x
  3. Step 3: Cross multiply
    40,141.63x = 55,414.70 × 28,215.19
  4. Step 4: Simplify right side
    40,141.63x = 1,563,536,289.29
  5. Step 5: Solve for x
    x = 1,563,536,289.29/40,141.63
  6. Step 6: Final answer
    x = 38,950.49

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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.