Home / 19,487.94-26,861.76-15,231.48

Finding the Fourth Proportional to 19,487.94, 26,861.76 and 15,231.48

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Solution

The fourth proportional to 19,487.94, 26,861.76 and 15,231.48 is: 20,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.94 : 26,861.76 = 15,231.48 : x
  2. Step 2: Convert to fraction form
    19,487.94/26,861.76 = 15,231.48/x
  3. Step 3: Cross multiply
    19,487.94x = 26,861.76 × 15,231.48
  4. Step 4: Simplify right side
    19,487.94x = 409,144,360.20
  5. Step 5: Solve for x
    x = 409,144,360.20/19,487.94
  6. Step 6: Final answer
    x = 20,994.75

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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.