Home / 28,971.27-39,977.15-17,657.19

Finding the Fourth Proportional to 28,971.27, 39,977.15 and 17,657.19

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Solution

The fourth proportional to 28,971.27, 39,977.15 and 17,657.19 is: 24,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.27 : 39,977.15 = 17,657.19 : x
  2. Step 2: Convert to fraction form
    28,971.27/39,977.15 = 17,657.19/x
  3. Step 3: Cross multiply
    28,971.27x = 39,977.15 × 17,657.19
  4. Step 4: Simplify right side
    28,971.27x = 705,884,044.92
  5. Step 5: Solve for x
    x = 705,884,044.92/28,971.27
  6. Step 6: Final answer
    x = 24,364.97

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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.