Home / 27,928.71-38,543.54-15,353.46

Finding the Fourth Proportional to 27,928.71, 38,543.54 and 15,353.46

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Solution

The fourth proportional to 27,928.71, 38,543.54 and 15,353.46 is: 21,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.71 : 38,543.54 = 15,353.46 : x
  2. Step 2: Convert to fraction form
    27,928.71/38,543.54 = 15,353.46/x
  3. Step 3: Cross multiply
    27,928.71x = 38,543.54 × 15,353.46
  4. Step 4: Simplify right side
    27,928.71x = 591,776,622.88
  5. Step 5: Solve for x
    x = 591,776,622.88/27,928.71
  6. Step 6: Final answer
    x = 21,188.83

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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.