Home / 30,061.12-45,102.04-13,432.64

Finding the Fourth Proportional to 30,061.12, 45,102.04 and 13,432.64

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Solution

The fourth proportional to 30,061.12, 45,102.04 and 13,432.64 is: 20,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,061.12 : 45,102.04 = 13,432.64 : x
  2. Step 2: Convert to fraction form
    30,061.12/45,102.04 = 13,432.64/x
  3. Step 3: Cross multiply
    30,061.12x = 45,102.04 × 13,432.64
  4. Step 4: Simplify right side
    30,061.12x = 605,839,466.59
  5. Step 5: Solve for x
    x = 605,839,466.59/30,061.12
  6. Step 6: Final answer
    x = 20,153.59

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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.