Home / 30,813.24-42,522.39-16,666.20

Finding the Fourth Proportional to 30,813.24, 42,522.39 and 16,666.20

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Solution

The fourth proportional to 30,813.24, 42,522.39 and 16,666.20 is: 22,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.24 : 42,522.39 = 16,666.20 : x
  2. Step 2: Convert to fraction form
    30,813.24/42,522.39 = 16,666.20/x
  3. Step 3: Cross multiply
    30,813.24x = 42,522.39 × 16,666.20
  4. Step 4: Simplify right side
    30,813.24x = 708,686,656.22
  5. Step 5: Solve for x
    x = 708,686,656.22/30,813.24
  6. Step 6: Final answer
    x = 22,999.42

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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.