Home / 19,985.17-27,579.39-10,910.50

Finding the Fourth Proportional to 19,985.17, 27,579.39 and 10,910.50

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Solution

The fourth proportional to 19,985.17, 27,579.39 and 10,910.50 is: 15,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.17 : 27,579.39 = 10,910.50 : x
  2. Step 2: Convert to fraction form
    19,985.17/27,579.39 = 10,910.50/x
  3. Step 3: Cross multiply
    19,985.17x = 27,579.39 × 10,910.50
  4. Step 4: Simplify right side
    19,985.17x = 300,904,934.60
  5. Step 5: Solve for x
    x = 300,904,934.60/19,985.17
  6. Step 6: Final answer
    x = 15,056.41

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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.