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Finding the Fourth Proportional to 32,924, 45,435.12 and 18,020

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Solution

The fourth proportional to 32,924, 45,435.12 and 18,020 is: 24,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,924 : 45,435.12 = 18,020 : x
  2. Step 2: Convert to fraction form
    32,924/45,435.12 = 18,020/x
  3. Step 3: Cross multiply
    32,924x = 45,435.12 × 18,020
  4. Step 4: Simplify right side
    32,924x = 818,740,862.40
  5. Step 5: Solve for x
    x = 818,740,862.40/32,924
  6. Step 6: Final answer
    x = 24,867.60

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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.