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Finding the Fourth Proportional to 32,430.60, 48,645.90 and 18,568.20

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Solution

The fourth proportional to 32,430.60, 48,645.90 and 18,568.20 is: 27,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,430.60 : 48,645.90 = 18,568.20 : x
  2. Step 2: Convert to fraction form
    32,430.60/48,645.90 = 18,568.20/x
  3. Step 3: Cross multiply
    32,430.60x = 48,645.90 × 18,568.20
  4. Step 4: Simplify right side
    32,430.60x = 903,266,800.38
  5. Step 5: Solve for x
    x = 903,266,800.38/32,430.60
  6. Step 6: Final answer
    x = 27,852.30

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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.