Home / 30,864.64-42,593.04-16,717.76

Finding the Fourth Proportional to 30,864.64, 42,593.04 and 16,717.76

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Solution

The fourth proportional to 30,864.64, 42,593.04 and 16,717.76 is: 23,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864.64 : 42,593.04 = 16,717.76 : x
  2. Step 2: Convert to fraction form
    30,864.64/42,593.04 = 16,717.76/x
  3. Step 3: Cross multiply
    30,864.64x = 42,593.04 × 16,717.76
  4. Step 4: Simplify right side
    30,864.64x = 712,060,220.39
  5. Step 5: Solve for x
    x = 712,060,220.39/30,864.64
  6. Step 6: Final answer
    x = 23,070.42

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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.