Home / 28,823.50-39,776.43-15,575.50

Finding the Fourth Proportional to 28,823.50, 39,776.43 and 15,575.50

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Solution

The fourth proportional to 28,823.50, 39,776.43 and 15,575.50 is: 21,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.50 : 39,776.43 = 15,575.50 : x
  2. Step 2: Convert to fraction form
    28,823.50/39,776.43 = 15,575.50/x
  3. Step 3: Cross multiply
    28,823.50x = 39,776.43 × 15,575.50
  4. Step 4: Simplify right side
    28,823.50x = 619,537,785.47
  5. Step 5: Solve for x
    x = 619,537,785.47/28,823.50
  6. Step 6: Final answer
    x = 21,494.19

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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.