Home / 27,191.63-40,812.05-18,875.57

Finding the Fourth Proportional to 27,191.63, 40,812.05 and 18,875.57

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Solution

The fourth proportional to 27,191.63, 40,812.05 and 18,875.57 is: 28,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,191.63 : 40,812.05 = 18,875.57 : x
  2. Step 2: Convert to fraction form
    27,191.63/40,812.05 = 18,875.57/x
  3. Step 3: Cross multiply
    27,191.63x = 40,812.05 × 18,875.57
  4. Step 4: Simplify right side
    27,191.63x = 770,350,549.75
  5. Step 5: Solve for x
    x = 770,350,549.75/27,191.63
  6. Step 6: Final answer
    x = 28,330.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.