Home / 15,845.35-21,877.28-14,161.36

Finding the Fourth Proportional to 15,845.35, 21,877.28 and 14,161.36

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Solution

The fourth proportional to 15,845.35, 21,877.28 and 14,161.36 is: 19,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.35 : 21,877.28 = 14,161.36 : x
  2. Step 2: Convert to fraction form
    15,845.35/21,877.28 = 14,161.36/x
  3. Step 3: Cross multiply
    15,845.35x = 21,877.28 × 14,161.36
  4. Step 4: Simplify right side
    15,845.35x = 309,812,037.90
  5. Step 5: Solve for x
    x = 309,812,037.90/15,845.35
  6. Step 6: Final answer
    x = 19,552.24

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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.