Home / 28,496.50-39,324.45-15,921.34

Finding the Fourth Proportional to 28,496.50, 39,324.45 and 15,921.34

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Solution

The fourth proportional to 28,496.50, 39,324.45 and 15,921.34 is: 21,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496.50 : 39,324.45 = 15,921.34 : x
  2. Step 2: Convert to fraction form
    28,496.50/39,324.45 = 15,921.34/x
  3. Step 3: Cross multiply
    28,496.50x = 39,324.45 × 15,921.34
  4. Step 4: Simplify right side
    28,496.50x = 626,097,938.76
  5. Step 5: Solve for x
    x = 626,097,938.76/28,496.50
  6. Step 6: Final answer
    x = 21,971.05

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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.