Home / 30,509.73-42,098.58-17,081.55

Finding the Fourth Proportional to 30,509.73, 42,098.58 and 17,081.55

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Solution

The fourth proportional to 30,509.73, 42,098.58 and 17,081.55 is: 23,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,509.73 : 42,098.58 = 17,081.55 : x
  2. Step 2: Convert to fraction form
    30,509.73/42,098.58 = 17,081.55/x
  3. Step 3: Cross multiply
    30,509.73x = 42,098.58 × 17,081.55
  4. Step 4: Simplify right side
    30,509.73x = 719,108,999.20
  5. Step 5: Solve for x
    x = 719,108,999.20/30,509.73
  6. Step 6: Final answer
    x = 23,569.83

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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.