Home / 30,654.28-45,999.42-11,947.24

Finding the Fourth Proportional to 30,654.28, 45,999.42 and 11,947.24

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Solution

The fourth proportional to 30,654.28, 45,999.42 and 11,947.24 is: 17,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,654.28 : 45,999.42 = 11,947.24 : x
  2. Step 2: Convert to fraction form
    30,654.28/45,999.42 = 11,947.24/x
  3. Step 3: Cross multiply
    30,654.28x = 45,999.42 × 11,947.24
  4. Step 4: Simplify right side
    30,654.28x = 549,566,110.60
  5. Step 5: Solve for x
    x = 549,566,110.60/30,654.28
  6. Step 6: Final answer
    x = 17,927.88

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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.