Home / 30,865.07-42,593.87-16,717.93

Finding the Fourth Proportional to 30,865.07, 42,593.87 and 16,717.93

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Solution

The fourth proportional to 30,865.07, 42,593.87 and 16,717.93 is: 23,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865.07 : 42,593.87 = 16,717.93 : x
  2. Step 2: Convert to fraction form
    30,865.07/42,593.87 = 16,717.93/x
  3. Step 3: Cross multiply
    30,865.07x = 42,593.87 × 16,717.93
  4. Step 4: Simplify right side
    30,865.07x = 712,081,272.40
  5. Step 5: Solve for x
    x = 712,081,272.40/30,865.07
  6. Step 6: Final answer
    x = 23,070.78

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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.