Home / 13,351.32-20,029.80-5,031.16

Finding the Fourth Proportional to 13,351.32, 20,029.80 and 5,031.16

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Solution

The fourth proportional to 13,351.32, 20,029.80 and 5,031.16 is: 7,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.32 : 20,029.80 = 5,031.16 : x
  2. Step 2: Convert to fraction form
    13,351.32/20,029.80 = 5,031.16/x
  3. Step 3: Cross multiply
    13,351.32x = 20,029.80 × 5,031.16
  4. Step 4: Simplify right side
    13,351.32x = 100,773,097.36
  5. Step 5: Solve for x
    x = 100,773,097.36/13,351.32
  6. Step 6: Final answer
    x = 7,547.80

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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.