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Finding the Fourth Proportional to 32,999.40, 45,538.62 and 18,659

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Solution

The fourth proportional to 32,999.40, 45,538.62 and 18,659 is: 25,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,999.40 : 45,538.62 = 18,659 : x
  2. Step 2: Convert to fraction form
    32,999.40/45,538.62 = 18,659/x
  3. Step 3: Cross multiply
    32,999.40x = 45,538.62 × 18,659
  4. Step 4: Simplify right side
    32,999.40x = 849,705,110.58
  5. Step 5: Solve for x
    x = 849,705,110.58/32,999.40
  6. Step 6: Final answer
    x = 25,749.11

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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.