Home / 19,376.20-29,047.02-7,681.42

Finding the Fourth Proportional to 19,376.20, 29,047.02 and 7,681.42

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Solution

The fourth proportional to 19,376.20, 29,047.02 and 7,681.42 is: 11,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.20 : 29,047.02 = 7,681.42 : x
  2. Step 2: Convert to fraction form
    19,376.20/29,047.02 = 7,681.42/x
  3. Step 3: Cross multiply
    19,376.20x = 29,047.02 × 7,681.42
  4. Step 4: Simplify right side
    19,376.20x = 223,122,360.37
  5. Step 5: Solve for x
    x = 223,122,360.37/19,376.20
  6. Step 6: Final answer
    x = 11,515.28

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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.