Home / 28,691.49-39,607.74-19,147.26

Finding the Fourth Proportional to 28,691.49, 39,607.74 and 19,147.26

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Solution

The fourth proportional to 28,691.49, 39,607.74 and 19,147.26 is: 26,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.49 : 39,607.74 = 19,147.26 : x
  2. Step 2: Convert to fraction form
    28,691.49/39,607.74 = 19,147.26/x
  3. Step 3: Cross multiply
    28,691.49x = 39,607.74 × 19,147.26
  4. Step 4: Simplify right side
    28,691.49x = 758,379,695.79
  5. Step 5: Solve for x
    x = 758,379,695.79/28,691.49
  6. Step 6: Final answer
    x = 26,432.22

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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.