Home / 28,110.50-38,791.97-15,534.98

Finding the Fourth Proportional to 28,110.50, 38,791.97 and 15,534.98

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Solution

The fourth proportional to 28,110.50, 38,791.97 and 15,534.98 is: 21,437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.50 : 38,791.97 = 15,534.98 : x
  2. Step 2: Convert to fraction form
    28,110.50/38,791.97 = 15,534.98/x
  3. Step 3: Cross multiply
    28,110.50x = 38,791.97 × 15,534.98
  4. Step 4: Simplify right side
    28,110.50x = 602,632,478.11
  5. Step 5: Solve for x
    x = 602,632,478.11/28,110.50
  6. Step 6: Final answer
    x = 21,437.99

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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.