Home / 28,099.54-38,776.92-15,352.45

Finding the Fourth Proportional to 28,099.54, 38,776.92 and 15,352.45

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Solution

The fourth proportional to 28,099.54, 38,776.92 and 15,352.45 is: 21,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.54 : 38,776.92 = 15,352.45 : x
  2. Step 2: Convert to fraction form
    28,099.54/38,776.92 = 15,352.45/x
  3. Step 3: Cross multiply
    28,099.54x = 38,776.92 × 15,352.45
  4. Step 4: Simplify right side
    28,099.54x = 595,320,681.28
  5. Step 5: Solve for x
    x = 595,320,681.28/28,099.54
  6. Step 6: Final answer
    x = 21,186.13

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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.