Home / 30,864.21-42,592.57-16,717.05

Finding the Fourth Proportional to 30,864.21, 42,592.57 and 16,717.05

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Solution

The fourth proportional to 30,864.21, 42,592.57 and 16,717.05 is: 23,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864.21 : 42,592.57 = 16,717.05 : x
  2. Step 2: Convert to fraction form
    30,864.21/42,592.57 = 16,717.05/x
  3. Step 3: Cross multiply
    30,864.21x = 42,592.57 × 16,717.05
  4. Step 4: Simplify right side
    30,864.21x = 712,022,080.53
  5. Step 5: Solve for x
    x = 712,022,080.53/30,864.21
  6. Step 6: Final answer
    x = 23,069.51

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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.