Home / 28,284.28-39,032.78-15,537.98

Finding the Fourth Proportional to 28,284.28, 39,032.78 and 15,537.98

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Solution

The fourth proportional to 28,284.28, 39,032.78 and 15,537.98 is: 21,442.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.28 : 39,032.78 = 15,537.98 : x
  2. Step 2: Convert to fraction form
    28,284.28/39,032.78 = 15,537.98/x
  3. Step 3: Cross multiply
    28,284.28x = 39,032.78 × 15,537.98
  4. Step 4: Simplify right side
    28,284.28x = 606,490,574.88
  5. Step 5: Solve for x
    x = 606,490,574.88/28,284.28
  6. Step 6: Final answer
    x = 21,442.68

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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.