Home / 30,158.30-45,215.58-20,273.06

Finding the Fourth Proportional to 30,158.30, 45,215.58 and 20,273.06

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Solution

The fourth proportional to 30,158.30, 45,215.58 and 20,273.06 is: 30,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.30 : 45,215.58 = 20,273.06 : x
  2. Step 2: Convert to fraction form
    30,158.30/45,215.58 = 20,273.06/x
  3. Step 3: Cross multiply
    30,158.30x = 45,215.58 × 20,273.06
  4. Step 4: Simplify right side
    30,158.30x = 916,658,166.27
  5. Step 5: Solve for x
    x = 916,658,166.27/30,158.30
  6. Step 6: Final answer
    x = 30,394.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.