Home / 30,428.34-41,985.99-16,999.08

Finding the Fourth Proportional to 30,428.34, 41,985.99 and 16,999.08

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Solution

The fourth proportional to 30,428.34, 41,985.99 and 16,999.08 is: 23,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.34 : 41,985.99 = 16,999.08 : x
  2. Step 2: Convert to fraction form
    30,428.34/41,985.99 = 16,999.08/x
  3. Step 3: Cross multiply
    30,428.34x = 41,985.99 × 16,999.08
  4. Step 4: Simplify right side
    30,428.34x = 713,723,202.89
  5. Step 5: Solve for x
    x = 713,723,202.89/30,428.34
  6. Step 6: Final answer
    x = 23,455.87

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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.