Home / 30,964.07-42,730.17-16,816.91

Finding the Fourth Proportional to 30,964.07, 42,730.17 and 16,816.91

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Solution

The fourth proportional to 30,964.07, 42,730.17 and 16,816.91 is: 23,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964.07 : 42,730.17 = 16,816.91 : x
  2. Step 2: Convert to fraction form
    30,964.07/42,730.17 = 16,816.91/x
  3. Step 3: Cross multiply
    30,964.07x = 42,730.17 × 16,816.91
  4. Step 4: Simplify right side
    30,964.07x = 718,589,423.17
  5. Step 5: Solve for x
    x = 718,589,423.17/30,964.07
  6. Step 6: Final answer
    x = 23,207.21

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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.