Home / 30,835.55-42,552.96-16,688.36

Finding the Fourth Proportional to 30,835.55, 42,552.96 and 16,688.36

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Solution

The fourth proportional to 30,835.55, 42,552.96 and 16,688.36 is: 23,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,835.55 : 42,552.96 = 16,688.36 : x
  2. Step 2: Convert to fraction form
    30,835.55/42,552.96 = 16,688.36/x
  3. Step 3: Cross multiply
    30,835.55x = 42,552.96 × 16,688.36
  4. Step 4: Simplify right side
    30,835.55x = 710,138,902.78
  5. Step 5: Solve for x
    x = 710,138,902.78/30,835.55
  6. Step 6: Final answer
    x = 23,029.88

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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.