Home / 30,523.28-45,743.28-18,681.16

Finding the Fourth Proportional to 30,523.28, 45,743.28 and 18,681.16

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Solution

The fourth proportional to 30,523.28, 45,743.28 and 18,681.16 is: 27,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,523.28 : 45,743.28 = 18,681.16 : x
  2. Step 2: Convert to fraction form
    30,523.28/45,743.28 = 18,681.16/x
  3. Step 3: Cross multiply
    30,523.28x = 45,743.28 × 18,681.16
  4. Step 4: Simplify right side
    30,523.28x = 854,537,532.60
  5. Step 5: Solve for x
    x = 854,537,532.60/30,523.28
  6. Step 6: Final answer
    x = 27,996.26

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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.