Home / 28,971.57-39,960.07-17,641.77

Finding the Fourth Proportional to 28,971.57, 39,960.07 and 17,641.77

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Solution

The fourth proportional to 28,971.57, 39,960.07 and 17,641.77 is: 24,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.57 : 39,960.07 = 17,641.77 : x
  2. Step 2: Convert to fraction form
    28,971.57/39,960.07 = 17,641.77/x
  3. Step 3: Cross multiply
    28,971.57x = 39,960.07 × 17,641.77
  4. Step 4: Simplify right side
    28,971.57x = 704,966,170.17
  5. Step 5: Solve for x
    x = 704,966,170.17/28,971.57
  6. Step 6: Final answer
    x = 24,333.03

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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.