Home / 30,836.01-42,553.74-16,688.85

Finding the Fourth Proportional to 30,836.01, 42,553.74 and 16,688.85

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Solution

The fourth proportional to 30,836.01, 42,553.74 and 16,688.85 is: 23,030.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,836.01 : 42,553.74 = 16,688.85 : x
  2. Step 2: Convert to fraction form
    30,836.01/42,553.74 = 16,688.85/x
  3. Step 3: Cross multiply
    30,836.01x = 42,553.74 × 16,688.85
  4. Step 4: Simplify right side
    30,836.01x = 710,172,983.80
  5. Step 5: Solve for x
    x = 710,172,983.80/30,836.01
  6. Step 6: Final answer
    x = 23,030.64

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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.