Home / 30,813.30-42,522.24-16,666.15

Finding the Fourth Proportional to 30,813.30, 42,522.24 and 16,666.15

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Solution

The fourth proportional to 30,813.30, 42,522.24 and 16,666.15 is: 22,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.30 : 42,522.24 = 16,666.15 : x
  2. Step 2: Convert to fraction form
    30,813.30/42,522.24 = 16,666.15/x
  3. Step 3: Cross multiply
    30,813.30x = 42,522.24 × 16,666.15
  4. Step 4: Simplify right side
    30,813.30x = 708,681,923.87
  5. Step 5: Solve for x
    x = 708,681,923.87/30,813.30
  6. Step 6: Final answer
    x = 22,999.22

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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.