Home / 27,711.89-38,242.38-15,136.64

Finding the Fourth Proportional to 27,711.89, 38,242.38 and 15,136.64

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Solution

The fourth proportional to 27,711.89, 38,242.38 and 15,136.64 is: 20,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.89 : 38,242.38 = 15,136.64 : x
  2. Step 2: Convert to fraction form
    27,711.89/38,242.38 = 15,136.64/x
  3. Step 3: Cross multiply
    27,711.89x = 38,242.38 × 15,136.64
  4. Step 4: Simplify right side
    27,711.89x = 578,861,138.80
  5. Step 5: Solve for x
    x = 578,861,138.80/27,711.89
  6. Step 6: Final answer
    x = 20,888.55

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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.