Home / 28,567.41-39,422.03-15,821.15

Finding the Fourth Proportional to 28,567.41, 39,422.03 and 15,821.15

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Solution

The fourth proportional to 28,567.41, 39,422.03 and 15,821.15 is: 21,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,567.41 : 39,422.03 = 15,821.15 : x
  2. Step 2: Convert to fraction form
    28,567.41/39,422.03 = 15,821.15/x
  3. Step 3: Cross multiply
    28,567.41x = 39,422.03 × 15,821.15
  4. Step 4: Simplify right side
    28,567.41x = 623,701,573.72
  5. Step 5: Solve for x
    x = 623,701,573.72/28,567.41
  6. Step 6: Final answer
    x = 21,832.63

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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.