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Finding the Fourth Proportional to 32,160, 44,388.48 and 18,919.68

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Solution

The fourth proportional to 32,160, 44,388.48 and 18,919.68 is: 26,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,160 : 44,388.48 = 18,919.68 : x
  2. Step 2: Convert to fraction form
    32,160/44,388.48 = 18,919.68/x
  3. Step 3: Cross multiply
    32,160x = 44,388.48 × 18,919.68
  4. Step 4: Simplify right side
    32,160x = 839,815,837.29
  5. Step 5: Solve for x
    x = 839,815,837.29/32,160
  6. Step 6: Final answer
    x = 26,113.68

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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.