Home / 27,341.20-37,731.63-15,403.87

Finding the Fourth Proportional to 27,341.20, 37,731.63 and 15,403.87

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Solution

The fourth proportional to 27,341.20, 37,731.63 and 15,403.87 is: 21,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,341.20 : 37,731.63 = 15,403.87 : x
  2. Step 2: Convert to fraction form
    27,341.20/37,731.63 = 15,403.87/x
  3. Step 3: Cross multiply
    27,341.20x = 37,731.63 × 15,403.87
  4. Step 4: Simplify right side
    27,341.20x = 581,213,123.41
  5. Step 5: Solve for x
    x = 581,213,123.41/27,341.20
  6. Step 6: Final answer
    x = 21,257.78

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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.