Home / 30,809.08-42,516.48-17,380.29

Finding the Fourth Proportional to 30,809.08, 42,516.48 and 17,380.29

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Solution

The fourth proportional to 30,809.08, 42,516.48 and 17,380.29 is: 23,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.08 : 42,516.48 = 17,380.29 : x
  2. Step 2: Convert to fraction form
    30,809.08/42,516.48 = 17,380.29/x
  3. Step 3: Cross multiply
    30,809.08x = 42,516.48 × 17,380.29
  4. Step 4: Simplify right side
    30,809.08x = 738,948,752.18
  5. Step 5: Solve for x
    x = 738,948,752.18/30,809.08
  6. Step 6: Final answer
    x = 23,984.77

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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.