Home / 28,983.18-39,994.29-16,881.78

Finding the Fourth Proportional to 28,983.18, 39,994.29 and 16,881.78

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Solution

The fourth proportional to 28,983.18, 39,994.29 and 16,881.78 is: 23,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.18 : 39,994.29 = 16,881.78 : x
  2. Step 2: Convert to fraction form
    28,983.18/39,994.29 = 16,881.78/x
  3. Step 3: Cross multiply
    28,983.18x = 39,994.29 × 16,881.78
  4. Step 4: Simplify right side
    28,983.18x = 675,174,805.04
  5. Step 5: Solve for x
    x = 675,174,805.04/28,983.18
  6. Step 6: Final answer
    x = 23,295.40

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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.