Home / 30,937.07-42,693.13-16,789.88

Finding the Fourth Proportional to 30,937.07, 42,693.13 and 16,789.88

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Solution

The fourth proportional to 30,937.07, 42,693.13 and 16,789.88 is: 23,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.07 : 42,693.13 = 16,789.88 : x
  2. Step 2: Convert to fraction form
    30,937.07/42,693.13 = 16,789.88/x
  3. Step 3: Cross multiply
    30,937.07x = 42,693.13 × 16,789.88
  4. Step 4: Simplify right side
    30,937.07x = 716,812,529.52
  5. Step 5: Solve for x
    x = 716,812,529.52/30,937.07
  6. Step 6: Final answer
    x = 23,170.02

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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.