Home / 30,835.54-42,553.17-16,688.38

Finding the Fourth Proportional to 30,835.54, 42,553.17 and 16,688.38

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Solution

The fourth proportional to 30,835.54, 42,553.17 and 16,688.38 is: 23,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,835.54 : 42,553.17 = 16,688.38 : x
  2. Step 2: Convert to fraction form
    30,835.54/42,553.17 = 16,688.38/x
  3. Step 3: Cross multiply
    30,835.54x = 42,553.17 × 16,688.38
  4. Step 4: Simplify right side
    30,835.54x = 710,143,471.16
  5. Step 5: Solve for x
    x = 710,143,471.16/30,835.54
  6. Step 6: Final answer
    x = 23,030.03

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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.