Home / 27,688.88-38,209.44-15,750.80

Finding the Fourth Proportional to 27,688.88, 38,209.44 and 15,750.80

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Solution

The fourth proportional to 27,688.88, 38,209.44 and 15,750.80 is: 21,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.88 : 38,209.44 = 15,750.80 : x
  2. Step 2: Convert to fraction form
    27,688.88/38,209.44 = 15,750.80/x
  3. Step 3: Cross multiply
    27,688.88x = 38,209.44 × 15,750.80
  4. Step 4: Simplify right side
    27,688.88x = 601,829,247.55
  5. Step 5: Solve for x
    x = 601,829,247.55/27,688.88
  6. Step 6: Final answer
    x = 21,735.41

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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.