Home / 28,113.97-38,797.75-16,781.26

Finding the Fourth Proportional to 28,113.97, 38,797.75 and 16,781.26

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Solution

The fourth proportional to 28,113.97, 38,797.75 and 16,781.26 is: 23,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.97 : 38,797.75 = 16,781.26 : x
  2. Step 2: Convert to fraction form
    28,113.97/38,797.75 = 16,781.26/x
  3. Step 3: Cross multiply
    28,113.97x = 38,797.75 × 16,781.26
  4. Step 4: Simplify right side
    28,113.97x = 651,075,130.17
  5. Step 5: Solve for x
    x = 651,075,130.17/28,113.97
  6. Step 6: Final answer
    x = 23,158.42

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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.