Home / 28,370.57-39,151.07-15,623.50

Finding the Fourth Proportional to 28,370.57, 39,151.07 and 15,623.50

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Solution

The fourth proportional to 28,370.57, 39,151.07 and 15,623.50 is: 21,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.57 : 39,151.07 = 15,623.50 : x
  2. Step 2: Convert to fraction form
    28,370.57/39,151.07 = 15,623.50/x
  3. Step 3: Cross multiply
    28,370.57x = 39,151.07 × 15,623.50
  4. Step 4: Simplify right side
    28,370.57x = 611,676,742.15
  5. Step 5: Solve for x
    x = 611,676,742.15/28,370.57
  6. Step 6: Final answer
    x = 21,560.26

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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.