Home / 30,814.03-42,523.37-16,666.87

Finding the Fourth Proportional to 30,814.03, 42,523.37 and 16,666.87

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Solution

The fourth proportional to 30,814.03, 42,523.37 and 16,666.87 is: 23,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,814.03 : 42,523.37 = 16,666.87 : x
  2. Step 2: Convert to fraction form
    30,814.03/42,523.37 = 16,666.87/x
  3. Step 3: Cross multiply
    30,814.03x = 42,523.37 × 16,666.87
  4. Step 4: Simplify right side
    30,814.03x = 708,731,479.75
  5. Step 5: Solve for x
    x = 708,731,479.75/30,814.03
  6. Step 6: Final answer
    x = 23,000.29

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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.