Home / 19,515.51-29,275.10-5,475.48

Finding the Fourth Proportional to 19,515.51, 29,275.10 and 5,475.48

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Solution

The fourth proportional to 19,515.51, 29,275.10 and 5,475.48 is: 8,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.51 : 29,275.10 = 5,475.48 : x
  2. Step 2: Convert to fraction form
    19,515.51/29,275.10 = 5,475.48/x
  3. Step 3: Cross multiply
    19,515.51x = 29,275.10 × 5,475.48
  4. Step 4: Simplify right side
    19,515.51x = 160,295,207.44
  5. Step 5: Solve for x
    x = 160,295,207.44/19,515.51
  6. Step 6: Final answer
    x = 8,213.74

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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.