Home / 35,685.05-53,531.21-12,308.45

Finding the Fourth Proportional to 35,685.05, 53,531.21 and 12,308.45

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Solution

The fourth proportional to 35,685.05, 53,531.21 and 12,308.45 is: 18,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,685.05 : 53,531.21 = 12,308.45 : x
  2. Step 2: Convert to fraction form
    35,685.05/53,531.21 = 12,308.45/x
  3. Step 3: Cross multiply
    35,685.05x = 53,531.21 × 12,308.45
  4. Step 4: Simplify right side
    35,685.05x = 658,885,892.53
  5. Step 5: Solve for x
    x = 658,885,892.53/35,685.05
  6. Step 6: Final answer
    x = 18,463.92

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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.