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Finding the Fourth Proportional to 32,630.30, 45,029.78 and 18,485.88

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Solution

The fourth proportional to 32,630.30, 45,029.78 and 18,485.88 is: 25,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,630.30 : 45,029.78 = 18,485.88 : x
  2. Step 2: Convert to fraction form
    32,630.30/45,029.78 = 18,485.88/x
  3. Step 3: Cross multiply
    32,630.30x = 45,029.78 × 18,485.88
  4. Step 4: Simplify right side
    32,630.30x = 832,415,109.51
  5. Step 5: Solve for x
    x = 832,415,109.51/32,630.30
  6. Step 6: Final answer
    x = 25,510.50

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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.