Home / 30,447.56-42,017.64-16,835.61

Finding the Fourth Proportional to 30,447.56, 42,017.64 and 16,835.61

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Solution

The fourth proportional to 30,447.56, 42,017.64 and 16,835.61 is: 23,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,447.56 : 42,017.64 = 16,835.61 : x
  2. Step 2: Convert to fraction form
    30,447.56/42,017.64 = 16,835.61/x
  3. Step 3: Cross multiply
    30,447.56x = 42,017.64 × 16,835.61
  4. Step 4: Simplify right side
    30,447.56x = 707,392,694.59
  5. Step 5: Solve for x
    x = 707,392,694.59/30,447.56
  6. Step 6: Final answer
    x = 23,233.15

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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.